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BOSTON MARATHON 2024

Erin Zackey

Bib: 19121•F

WA

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 37%
Gender (Female)
#0 / 10924
Top 22%
Masters (Masters Women)
#0 / 6263
Top 10%
Division (F45-49)
#0 / 1753
Top 12%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:53
Rank: #14713
Start → 5K
24:53 | 8:01/mi
10K· 6.21 mi
49:24
Rank: #14052 (+661)
5K → 10K
24:31 | 7:53/mi
15K· 9.32 mi
1:13:58
Rank: #13587 (+465)
10K → 15K
24:34 | 7:54/mi
20K· 12.43 mi
1:38:53
Rank: #13065 (+522)
15K → 20K
24:55 | 8:01/mi
Half· 13.11 mi
1:44:10
Rank: #12929 (+136)
20K → Half
5:17 | 7:45/mi
25K· 15.53 mi
2:03:31
Rank: #12349 (+580)
Half → 25K
19:21 | 7:59/mi
30K· 18.64 mi
2:29:02
Rank: #11622 (+727)
25K → 30K
25:31 | 8:13/mi
20M
2:40:02
Rank: #11196 (+426)
30K → 20M
11:00 | 8:06/mi
21M
2:48:39
Rank: #10804 (+392)
20M → 21M
8:37 | 8:37/mi
35K· 21.75 mi
2:54:24
Rank: #10591 (+213)
21M → 35K
5:45 | 7:41/mi
23M
3:04:10
Rank: #10166 (+425)
35K → 23M
9:46 | 7:48/mi
24M
3:11:57
Rank: #9902 (+264)
23M → 24M
7:47 | 7:47/mi
40K· 24.85 mi
3:18:42
Rank: #9686 (+216)
24M → 40K
6:45 | 7:54/mi
25.2M
3:21:46
Rank: #9574 (+112)
40K → 25.2M
3:04 | 8:54/mi
Finish· 26.22 mi
3:29:24
Rank: #9400 (+174)
25.2M → Finish
7:38 | 7:29/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:10
Pace7:57 /mi
2nd Half
Distance13.11 mi
Time1:45:14
Pace8:02 /mi
📊Positive Split: 1.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:2524:538:0124:53
8:01
-
10K
6.21 mi11:42:5649:247:5724:31
7:53
-0:08
15K
9.32 mi12:07:301:13:587:5624:34
7:54
+0:01
20K
12.43 mi12:32:251:38:537:5724:55
8:01
+0:07
Half
13.11 mi12:37:421:44:107:575:17
7:45
-0:16
25K
15.53 mi12:57:032:03:317:5719:21
7:59
+0:14
30K
18.64 mi13:22:342:29:028:0025:31
8:13
+0:14
20M
20.00 mi13:33:342:40:028:0011:00
8:06
-0:07
21M
21.00 mi13:42:112:48:398:028:37
8:37
+0:31
35K
21.75 mi13:47:562:54:248:015:45
7:41
-0:56
23M
23.00 mi13:57:423:04:108:009:46
7:48
+0:07
24M
24.00 mi14:05:293:11:578:007:47
7:47
-0:01
40K
24.85 mi14:12:143:18:428:006:45
7:54
+0:07
25.2M
25.20 mi14:15:183:21:468:003:04
8:54
+1:00
Finish
26.22 mi14:22:563:29:248:007:38
7:29
-1:25

Checkpoints & Pacing

📈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

7:29 /mi

Average Pace

8:00 /mi

Slowest Pace

8:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:17:43

94% of race

Time at Steady Pace

8:37

4% of race

Time at Slower Pace

3:04

1% of race

Average Pace: 7:59 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:18:2524:538:0124:53
8:01
#14713
10K
6.21 mi11:42:5649:247:5724:31
7:53
#14052
15K
9.32 mi12:07:301:13:587:5624:34
7:54
#13587
20K
12.43 mi12:32:251:38:537:5724:55
8:01
#13065
Half
13.11 mi12:37:421:44:107:575:17
7:45
#12929
25K
15.53 mi12:57:032:03:317:5719:21
7:59
#12349
30K
18.64 mi13:22:342:29:028:0025:31
8:13
#11622
20M
20.00 mi13:33:342:40:028:0011:00
8:06
#11196
21M
21.00 mi13:42:112:48:398:028:37
8:37
#10804
35K
21.75 mi13:47:562:54:248:015:45
7:41
#10591
23M
23.00 mi13:57:423:04:108:009:46
7:48
#10166
24M
24.00 mi14:05:293:11:578:007:47
7:47
#9902
40K
24.85 mi14:12:143:18:428:006:45
7:54
#9686
25.2M
25.20 mi14:15:183:21:468:003:04
8:54
#9574
Finish
26.22 mi14:22:563:29:248:007:38
7:29
#9400
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi147134759475912744(Top 50%)3647(Top 33%)3647(Top 208%)
10K6.21 mi3.10 mi14052+6614366+3934366+39313366(Top 52%)3966(Top 36%)3966(Top 226%)
15K9.32 mi3.11 mi13587+4654111+2554111+25512744(Top 50%)3647(Top 33%)3647(Top 208%)
20K12.43 mi3.11 mi13065+5223813+2983813+29811969(Top 47%)3296(Top 30%)3296(Top 188%)
Half13.11 mi0.68 mi12929+1363744+693744+6910940(Top 43%)2760(Top 25%)2760(Top 157%)
25K15.53 mi2.42 mi12349+5803451+2933451+29310084(Top 39%)2523(Top 23%)2523(Top 144%)
30K18.64 mi3.11 mi11622+7273155+2963155+2969080(Top 36%)2248(Top 21%)2248(Top 128%)
20M20.00 mi1.36 mi11196+4262983+1722983+1727310(Top 29%)1682(Top 15%)1682(Top 96%)
21M21.00 mi1.00 mi10804+3922841+1422841+1426794(Top 27%)1624(Top 15%)1624(Top 93%)
35K21.75 mi0.75 mi10591+2132760+812760+816072(Top 24%)1347(Top 12%)1347(Top 77%)
23M23.00 mi1.25 mi10166+4252603+1572603+1574830(Top 19%)947(Top 9%)947(Top 54%)
24M24.00 mi1.00 mi9902+2642527+762527+765505(Top 22%)1318(Top 12%)1318(Top 75%)
40K24.85 mi0.85 mi9686+2162456+712456+715305(Top 21%)1343(Top 12%)1343(Top 77%)
25.2M25.20 mi0.35 mi9574+1122423+332423+336132(Top 24%)1788(Top 16%)1788(Top 102%)
Finish26.22 mi1.02 mi9400+1742377+462377+465615(Top 22%)1468(Top 13%)1468(Top 84%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 50%
×21stories
+97ft-345ft

Overall

12744

Females

3647

F45-49

3647

5K→10K

3.1 - 6.2 mi

Top 52%
×5stories
+79ft-138ft

Overall

13366

Females

3966

F45-49

3966

10K→15K

6.2 - 9.3 mi

Top 50%
×3stories
+67ft-78ft

Overall

12744

Females

3647

F45-49

3647

15K→20K

9.3 - 12.4 mi

Top 47%
×5stories
+106ft-86ft

Overall

11969

Females

3296

F45-49

3296

20K→Half

12.4 - 13.1 mi

Top 43%
×2stories
+19ft-37ft

Overall

10940

Females

2760

F45-49

2760

Half→25K

13.1 - 15.5 mi

Top 39%
×4stories
+66ft-88ft

Overall

10084

Females

2523

F45-49

2523

25K→30K

15.5 - 18.6 mi

Top 36%
×9stories
+181ft-148ft

Overall

9080

Females

2248

F45-49

2248

30K→20M

18.6 - 20.0 mi

Top 29%
×5stories
+64ft-50ft

Overall

7310

Females

1682

F45-49

1682

20M→21M

20.0 - 21.0 mi

Top 27%
×8stories
+106ft-24ft

Overall

6794

Females

1624

F45-49

1624

21M→35K

21.0 - 21.8 mi

Top 24%
×7stories
+17ft-86ft

Overall

6072

Females

1347

F45-49

1347

35K→23M

21.8 - 23.0 mi

Top 19%
×5stories
+23ft-63ft

Overall

4830

Females

947

F45-49

947

23M→24M

23.0 - 24.0 mi

Top 22%
×6stories
+12ft-82ft

Overall

5505

Females

1318

F45-49

1318

24M→40K

24.0 - 24.9 mi

Top 21%
×1story
+6ft-20ft

Overall

5305

Females

1343

F45-49

1343

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1story
+13ft-16ft

Overall

6132

Females

1788

F45-49

1788

25.2M→Finish

25.2 - 26.2 mi

Top 22%
×2stories
+22ft-21ft

Overall

5615

Females

1468

F45-49

1468

Passing Analysis

Category:
Athletes Passed
5541*
Passed By
228
Net Change
+5313
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14713
5K → 10K73069+661#14713#14052
10K → 15K50540+465#14052#13587
15K → 20K56947+522#13587#13065
20K → Half1382+136#13065#12929
Half → 25K59010+580#12929#12349
25K → 30K75124+727#12349#11622
30K → 20M4315+426#11622#11196
20M → 21M3964+392#11196#10804
21M → 35K2141+213#10804#10591
35K → 23M4261+425#10591#10166
23M → 24M266*2+264#10166#9902
24M → 40K2215+216#9902#9686
40K → 25.2M1186+112#9686#9574
25.2M → Finish18612+174#9574#9400
TOTALS5541*228+5313

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

📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing