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BOSTON MARATHON 2026

Randi Zuckerberg

Bib: 21213•F

NY

Boston Marathon logo
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 20%
Age Group (F40-44)
#0 / 1737
Top 42%
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
24:11
3.11 mi
Rank: #15284
Start → 5K
24:11 | 7:48/mi
10K
48:43
6.21 mi
Rank: #15831 (-547)
5K → 10K
24:32 | 7:54/mi
15K
1:13:25
9.32 mi
Rank: #16064 (-233)
10K → 15K
24:42 | 7:58/mi
20K
1:38:07
12.43 mi
Rank: #15966 (+98)
15K → 20K
24:42 | 7:58/mi
HALF
1:43:24
13.11 mi
Rank: #15920 (+46)
20K → HALF
5:17 | 7:46/mi
25K
2:02:36
15.53 mi
Rank: #15715 (+205)
HALF → 25K
19:12 | 7:56/mi
30K
2:27:27
18.64 mi
Rank: #15280 (+435)
25K → 30K
24:51 | 8:00/mi
20M
2:38:26
20.00 mi
Rank: #15091 (+189)
30K → 20M
10:59 | 8:06/mi
21M
2:46:38
21.00 mi
Rank: #14830 (+261)
20M → 21M
8:12 | 8:12/mi
35K
2:52:30
21.75 mi
Rank: #14776 (+54)
21M → 35K
5:52 | 7:51/mi
23M
3:02:26
23.00 mi
Rank: #14566 (+210)
35K → 23M
9:56 | 7:57/mi
24M
3:10:14
24.00 mi
Rank: #14470 (+96)
23M → 24M
7:48 | 7:48/mi
40K
3:17:03
24.85 mi
Rank: #14373 (+97)
24M → 40K
6:49 | 7:59/mi
25.2M
3:19:57
25.20 mi
Rank: #14318 (+55)
40K → 25.2M
2:54 | 8:25/mi
FINISH
3:27:37
26.22 mi
Rank: #14213 (+105)
25.2M → FINISH
7:40 | 7:32/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half⚖️ Balanced
via HALF
Distance13.11 mi
Time1:43:24
Pace7:54 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:44:13
Pace7:57 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:09:3824:117:4824:11
7:48
-
10K
6.21 mi11:34:1048:437:5124:32
7:54
+0:06
15K
9.32 mi11:58:521:13:257:5324:42
7:58
+0:04
20K
12.43 mi12:23:341:38:077:5424:42
7:58
0:00
HALF
13.11 mi12:28:511:43:247:545:17
7:46
-0:12
25K
15.53 mi12:48:032:02:367:5419:12
7:56
+0:10
30K
18.64 mi13:12:542:27:277:5524:51
8:00
+0:04
20M
20.00 mi13:23:532:38:267:5610:59
8:06
+0:06
21M
21.00 mi13:32:052:46:387:578:12
8:12
+0:06
35K
21.75 mi13:37:572:52:307:565:52
7:51
-0:21
23M
23.00 mi13:47:533:02:267:569:56
7:57
+0:06
24M
24.00 mi13:55:413:10:147:567:48
7:48
-0:09
40K
24.85 mi14:02:303:17:037:566:49
7:59
+0:11
25.2M
25.20 mi14:05:243:19:577:572:54
8:25
+0:26
FINISH
26.22 mi14:13:043:27:377:567:40
7:32
-0:53

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

7:32 /mi

Average Pace

7:55 /mi

Slowest Pace

8:25 /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

3:24:43

99% of race

Time at Steady Pace

2:54

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:55 /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 mi11:09:3824:117:4824:11
7:48
#15284
10K
6.21 mi11:34:1048:437:5124:32
7:54
#15831
15K
9.32 mi11:58:521:13:257:5324:42
7:58
#16064
20K
12.43 mi12:23:341:38:077:5424:42
7:58
#15966
HALF
13.11 mi12:28:511:43:247:545:17
7:46
#15920
25K
15.53 mi12:48:032:02:367:5419:12
7:56
#15715
30K
18.64 mi13:12:542:27:277:5524:51
8:00
#15280
20M
20.00 mi13:23:532:38:267:5610:59
8:06
#15091
21M
21.00 mi13:32:052:46:387:578:12
8:12
#14830
35K
21.75 mi13:37:572:52:307:565:52
7:51
#14776
23M
23.00 mi13:47:533:02:267:569:56
7:57
#14566
24M
24.00 mi13:55:413:10:147:567:48
7:48
#14470
40K
24.85 mi14:02:303:17:037:566:49
7:59
#14373
25.2M
25.20 mi14:05:243:19:577:572:54
8:25
#14318
FINISH
26.22 mi14:13:043:27:377:567:40
7:32
#14213
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi152844862486216612(Top 57%)5674(Top 45%)5674(Top 327%)
10K6.21 mi3.10 mi15831-5475221-3595221-35916436(Top 57%)5577(Top 44%)5577(Top 321%)
15K9.32 mi3.11 mi16064-2335369-1485369-14816612(Top 57%)5674(Top 45%)5674(Top 327%)
20K12.43 mi3.11 mi15966+985333+365333+3615752(Top 54%)5239(Top 42%)5239(Top 302%)
HALF13.11 mi0.68 mi15920+465308+255308+2515207(Top 52%)4843(Top 39%)4843(Top 279%)
25K15.53 mi2.42 mi15715+2055199+1095199+10914744(Top 51%)4719(Top 38%)4719(Top 272%)
30K18.64 mi3.11 mi15280+4354976+2234976+22313482(Top 46%)4115(Top 33%)4115(Top 237%)
20M20.00 mi1.36 mi15091+1894879+974879+9713445(Top 46%)4195(Top 33%)4195(Top 242%)
21M21.00 mi1.00 mi14830+2614755+1244755+12411247(Top 39%)3123(Top 25%)3123(Top 180%)
35K21.75 mi0.75 mi14776+544736+194736+1913414(Top 46%)4325(Top 34%)4325(Top 249%)
23M23.00 mi1.25 mi14566+2104637+994637+9912073(Top 42%)3645(Top 29%)3645(Top 210%)
24M24.00 mi1.00 mi14470+964609+284609+2812350(Top 43%)3907(Top 31%)3907(Top 225%)
40K24.85 mi0.85 mi14373+974569+404569+4012358(Top 43%)3971(Top 32%)3971(Top 229%)
25.2M25.20 mi0.35 mi14318+554552+174552+1711154(Top 38%)3445(Top 27%)3445(Top 198%)
FINISH26.22 mi1.02 mi14213+1054505+474505+4711661(Top 40%)3695(Top 29%)3695(Top 213%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 57%
×21
+97ft-345ft

Overall

16612

Females

5674

F40-44

5674

5K→10K

3.1 - 6.2 mi

Top 57%
×5
+79ft-138ft

Overall

16436

Females

5577

F40-44

5577

10K→15K

6.2 - 9.3 mi

Top 57%
×3
+67ft-78ft

Overall

16612

Females

5674

F40-44

5674

15K→20K

9.3 - 12.4 mi

Top 54%
×5
+106ft-86ft

Overall

15752

Females

5239

F40-44

5239

20K→HALF

12.4 - 13.1 mi

Top 52%
×2
+19ft-37ft

Overall

15207

Females

4843

F40-44

4843

HALF→25K

13.1 - 15.5 mi

Top 51%
×4
+66ft-88ft

Overall

14744

Females

4719

F40-44

4719

25K→30K

15.5 - 18.6 mi

Top 46%
×9
+181ft-148ft

Overall

13482

Females

4115

F40-44

4115

30K→20M

18.6 - 20.0 mi

Top 46%
×5
+64ft-50ft

Overall

13445

Females

4195

F40-44

4195

20M→21M

20.0 - 21.0 mi

Top 39%
×8
+106ft-24ft

Overall

11247

Females

3123

F40-44

3123

21M→35K

21.0 - 21.8 mi

Top 46%
×7
+17ft-86ft

Overall

13414

Females

4325

F40-44

4325

35K→23M

21.8 - 23.0 mi

Top 42%
×5
+23ft-63ft

Overall

12073

Females

3645

F40-44

3645

23M→24M

23.0 - 24.0 mi

Top 43%
×6
+12ft-82ft

Overall

12350

Females

3907

F40-44

3907

24M→40K

24.0 - 24.9 mi

Top 43%
×1
+6ft-20ft

Overall

12358

Females

3971

F40-44

3971

40K→25.2M

24.9 - 25.2 mi

Top 38%
×1
+13ft-16ft

Overall

11154

Females

3445

F40-44

3445

25.2M→FINISH

25.2 - 26.2 mi

Top 40%
×2
+22ft-21ft

Overall

11661

Females

3695

F40-44

3695

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2447*
Passed By
761
Net Change
+1071
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15284
5K → 10K111200-547#15284#15831
10K → 15K124200-233#15831#16064
15K → 20K232*134+98#16064#15966
20K → HALF6115+46#15966#15920
HALF → 25K240*35+205#15920#15715
25K → 30K465*30+435#15715#15280
30K → 20M205*16+189#15280#15091
20M → 21M267*6+261#15091#14830
21M → 35K8329+54#14830#14776
35K → 23M228*18+210#14776#14566
23M → 24M11721+96#14566#14470
24M → 40K11922+97#14470#14373
40K → 25.2M6510+55#14373#14318
25.2M → FINISH13025+105#14318#14213
TOTALS2447*761+1071

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing