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BOSTON MARATHON 2026

Erin Zackey

Bib: 20785•F

WA

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Top 49%
Gender (Female)
#0 / 12578
Top 36%
Masters (Masters Women)
#0 / 6862
Top 21%
Age Group (F45-49)
#0 / 1786
Top 23%
Race Day Weather
51°/41°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
24:05
3.11 mi
Rank: #15023
Start → 5K
24:05 | 7:46/mi
10K
48:16
6.21 mi
Rank: #15211 (-188)
5K → 10K
24:11 | 7:48/mi
15K
1:12:27
9.32 mi
Rank: #15213 (-2)
10K → 15K
24:11 | 7:48/mi
20K
1:36:51
12.43 mi
Rank: #15109 (+104)
15K → 20K
24:24 | 7:52/mi
HALF
1:42:04
13.11 mi
Rank: #15066 (+43)
20K → HALF
5:13 | 7:40/mi
25K
2:01:04
15.53 mi
Rank: #14881 (+185)
HALF → 25K
19:00 | 7:51/mi
30K
2:25:42
18.64 mi
Rank: #14491 (+390)
25K → 30K
24:38 | 7:56/mi
20M
2:36:34
20.00 mi
Rank: #14343 (+148)
30K → 20M
10:52 | 8:01/mi
21M
2:45:10
21.00 mi
Rank: #14270 (+73)
20M → 21M
8:36 | 8:36/mi
35K
2:51:02
21.75 mi
Rank: #14228 (+42)
21M → 35K
5:52 | 7:51/mi
23M
3:01:18
23.00 mi
Rank: #14175 (+53)
35K → 23M
10:16 | 8:13/mi
24M
3:09:15
24.00 mi
Rank: #14126 (+49)
23M → 24M
7:57 | 7:57/mi
40K
3:16:25
24.85 mi
Rank: #14155 (-29)
24M → 40K
7:10 | 8:23/mi
25.2M
3:19:34
25.20 mi
Rank: #14178 (-23)
40K → 25.2M
3:09 | 9:09/mi
FINISH
3:28:01
26.22 mi
Rank: #14337 (-159)
25.2M → FINISH
8:27 | 8:18/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:42:04
Pace7:48 /mi
2nd Half
Distance13.11 mi
Time1:45:57
Pace8:05 /mi
📊Positive Split: 3.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:10:0324:057:4624:05
7:46
-
10K
6.21 mi11:34:1448:167:4724:11
7:48
+0:02
15K
9.32 mi11:58:251:12:277:4724:11
7:48
0:00
20K
12.43 mi12:22:491:36:517:4824:24
7:52
+0:04
HALF
13.11 mi12:28:021:42:047:485:13
7:40
-0:12
25K
15.53 mi12:47:022:01:047:4819:00
7:51
+0:11
30K
18.64 mi13:11:402:25:427:4924:38
7:56
+0:05
20M
20.00 mi13:22:322:36:347:5010:52
8:01
+0:05
21M
21.00 mi13:31:082:45:107:528:36
8:36
+0:35
35K
21.75 mi13:37:002:51:027:525:52
7:51
-0:45
23M
23.00 mi13:47:163:01:187:5310:16
8:13
+0:22
24M
24.00 mi13:55:133:09:157:547:57
7:57
-0:16
40K
24.85 mi14:02:233:16:257:557:10
8:23
+0:26
25.2M
25.20 mi14:05:323:19:347:563:09
9:09
+0:46
FINISH
26.22 mi14:13:593:28:017:578:27
8:18
-0:51

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

7:40 /mi

Average Pace

7:56 /mi

Slowest Pace

9:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

3:16:16

94% of race

Time at Steady Pace

8:36

4% of race

Time at Slower Pace

3:09

2% of race

Average Pace: 7:56 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:10:0324:057:4624:05
7:46
#15023
10K
6.21 mi11:34:1448:167:4724:11
7:48
#15211
15K
9.32 mi11:58:251:12:277:4724:11
7:48
#15213
20K
12.43 mi12:22:491:36:517:4824:24
7:52
#15109
HALF
13.11 mi12:28:021:42:047:485:13
7:40
#15066
25K
15.53 mi12:47:022:01:047:4819:00
7:51
#14881
30K
18.64 mi13:11:402:25:427:4924:38
7:56
#14491
20M
20.00 mi13:22:322:36:347:5010:52
8:01
#14343
21M
21.00 mi13:31:082:45:107:528:36
8:36
#14270
35K
21.75 mi13:37:002:51:027:525:52
7:51
#14228
23M
23.00 mi13:47:163:01:187:5310:16
8:13
#14175
24M
24.00 mi13:55:133:09:157:547:57
7:57
#14126
40K
24.85 mi14:02:233:16:257:557:10
8:23
#14155
25.2M
25.20 mi14:05:323:19:347:563:09
9:09
#14178
FINISH
26.22 mi14:13:593:28:017:578:27
8:18
#14337
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi150234700470015222(Top 52%)4876(Top 39%)4876(Top 273%)
10K6.21 mi3.10 mi15211-1884847-1474847-14715500(Top 53%)5008(Top 40%)5008(Top 280%)
15K9.32 mi3.11 mi15213-24872-254872-2515222(Top 52%)4876(Top 39%)4876(Top 273%)
20K12.43 mi3.11 mi15109+1044813+594813+5914959(Top 52%)4771(Top 38%)4771(Top 267%)
HALF13.11 mi0.68 mi15066+434782+314782+3114395(Top 50%)4388(Top 35%)4388(Top 246%)
25K15.53 mi2.42 mi14881+1854673+1094673+10914140(Top 49%)4378(Top 35%)4378(Top 245%)
30K18.64 mi3.11 mi14491+3904496+1774496+17712986(Top 45%)3837(Top 31%)3837(Top 215%)
20M20.00 mi1.36 mi14343+1484432+644432+6412875(Top 44%)3879(Top 31%)3879(Top 217%)
21M21.00 mi1.00 mi14270+734400+324400+3213782(Top 47%)4470(Top 36%)4470(Top 250%)
35K21.75 mi0.75 mi14228+424402-24402-213418(Top 46%)4329(Top 34%)4329(Top 242%)
23M23.00 mi1.25 mi14175+534402440213837(Top 48%)4616(Top 37%)4616(Top 258%)
24M24.00 mi1.00 mi14126+494393+94393+913422(Top 46%)4481(Top 36%)4481(Top 251%)
40K24.85 mi0.85 mi14155-294444-514444-5114972(Top 52%)5413(Top 43%)5413(Top 303%)
25.2M25.20 mi0.35 mi14178-234469-254469-2515482(Top 53%)5681(Top 45%)5681(Top 318%)
FINISH26.22 mi1.02 mi14337-1594582-1134582-11316993(Top 59%)6501(Top 52%)6501(Top 364%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 52%
×21
+97ft-345ft

Overall

15222

Females

4876

F45-49

4876

5K→10K

3.1 - 6.2 mi

Top 53%
×5
+79ft-138ft

Overall

15500

Females

5008

F45-49

5008

10K→15K

6.2 - 9.3 mi

Top 52%
×3
+67ft-78ft

Overall

15222

Females

4876

F45-49

4876

15K→20K

9.3 - 12.4 mi

Top 52%
×5
+106ft-86ft

Overall

14959

Females

4771

F45-49

4771

20K→HALF

12.4 - 13.1 mi

Top 50%
×2
+19ft-37ft

Overall

14395

Females

4388

F45-49

4388

HALF→25K

13.1 - 15.5 mi

Top 49%
×4
+66ft-88ft

Overall

14140

Females

4378

F45-49

4378

25K→30K

15.5 - 18.6 mi

Top 45%
×9
+181ft-148ft

Overall

12986

Females

3837

F45-49

3837

30K→20M

18.6 - 20.0 mi

Top 44%
×5
+64ft-50ft

Overall

12875

Females

3879

F45-49

3879

20M→21M

20.0 - 21.0 mi

Top 47%
×8
+106ft-24ft

Overall

13782

Females

4470

F45-49

4470

21M→35K

21.0 - 21.8 mi

Top 46%
×7
+17ft-86ft

Overall

13418

Females

4329

F45-49

4329

35K→23M

21.8 - 23.0 mi

Top 48%
×5
+23ft-63ft

Overall

13837

Females

4616

F45-49

4616

23M→24M

23.0 - 24.0 mi

Top 46%
×6
+12ft-82ft

Overall

13422

Females

4481

F45-49

4481

24M→40K

24.0 - 24.9 mi

Top 52%
×1
+6ft-20ft

Overall

14972

Females

5413

F45-49

5413

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1
+13ft-16ft

Overall

15482

Females

5681

F45-49

5681

25.2M→FINISH

25.2 - 26.2 mi

Top 59%
×2
+22ft-21ft

Overall

16993

Females

6501

F45-49

6501

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2059
Passed By
1373
Net Change
+686
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15023
5K → 10K207395-188#15023#15211
10K → 15K205207-2#15211#15213
15K → 20K223119+104#15213#15109
20K → HALF6219+43#15109#15066
HALF → 25K23752+185#15066#14881
25K → 30K42232+390#14881#14491
30K → 20M17931+148#14491#14343
20M → 21M12855+73#14343#14270
21M → 35K7331+42#14270#14228
35K → 23M12168+53#14228#14175
23M → 24M9344+49#14175#14126
24M → 40K5786-29#14126#14155
40K → 25.2M2447-23#14155#14178
25.2M → FINISH28187-159#14178#14337
TOTALS20591373+686
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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Export & Support

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Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing