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BOSTON MARATHON 2025

Jennifer Antonik

Bib: 15661•F

FL

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:49/mi
24:17
↑ 97↓ 3451.5%
10K· 6.21 mi
7:39/mi
48:04
↑ 79↓ 1380.4%
15K· 9.32 mi
7:48/mi
1:12:18
↑ 67↓ 78
20K· 12.43 mi
8:24/mi
1:38:24
↑ 106↓ 860.1%
Half· 13.11 mi
8:02/mi
1:43:53
↑ 19↓ 370.5%
25K· 15.53 mi
8:40/mi
2:04:54
↑ 66↓ 880.2%
30K· 18.64 mi
11:22/mi
2:40:14
↑ 181↓ 1480.2%
20M
10:09/mi
2:54:01
↑ 64↓ 500.2%
21M
11:04/mi
3:05:05
↑ 106↓ 241.6%
35K· 21.75 mi
10:51/mi
3:13:12
↑ 17↓ 861.7%
23M
10:57/mi
3:26:55
↑ 23↓ 630.6%
24M
11:14/mi
3:38:09
↓ 821.3%
40K· 24.85 mi
9:35/mi
3:46:21
↓ 200.3%
25.2M
10:29/mi
3:49:58
↑ 13↓ 160.2%
Finish· 26.22 mi
8:14/mi
3:58:21
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:53
Pace7:55 /mi
2nd Half
Distance13.11 mi
Time2:14:28
Pace10:15 /mi
📊Positive Split: 29.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:56:3724:177:4924:17
7:49
-
10K
6.21 mi11:20:2448:047:4423:47
7:39
-0:10
15K
9.32 mi11:44:381:12:187:4524:14
7:48
+0:09
20K
12.43 mi12:10:441:38:247:5526:06
8:24
+0:36
Half
13.11 mi12:16:131:43:537:555:29
8:02
-0:22
25K
15.53 mi12:37:142:04:548:0221:01
8:40
+0:38
30K
18.64 mi13:12:342:40:148:3635:20
11:22
+2:42
20M
20.00 mi13:26:212:54:018:4213:47
10:09
-1:13
21M
21.00 mi13:37:253:05:058:4911:04
11:04
+0:55
35K
21.75 mi13:45:323:13:128:538:07
10:51
-0:13
23M
23.00 mi13:59:153:26:559:0013:43
10:57
+0:06
24M
24.00 mi14:10:293:38:099:0511:14
11:14
+0:17
40K
24.85 mi14:18:413:46:219:068:12
9:35
-1:39
25.2M
25.20 mi14:22:183:49:589:083:37
10:29
+0:54
Finish
26.22 mi14:30:413:58:219:068:23
8:14
-2:15

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

7:39 /mi

Average Pace

9:06 /mi

Slowest Pace

11:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:13:17

56% of race

Time at Steady Pace

21:59

9% of race

Time at Slower Pace

1:23:05

35% of race

Average Pace: 9:05 /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 mi10:56:3724:177:4924:17
7:49
#14980
10K
6.21 mi11:20:2448:047:4423:47
7:39
#14217
15K
9.32 mi11:44:381:12:187:4524:14
7:48
#14272
20K
12.43 mi12:10:441:38:247:5526:06
8:24
#15261
Half
13.11 mi12:16:131:43:537:555:29
8:02
#15314
25K
15.53 mi12:37:142:04:548:0221:01
8:40
#15889
30K
18.64 mi13:12:342:40:148:3635:20
11:22
#18724
20M
20.00 mi13:26:212:54:018:4213:47
10:09
#19041
21M
21.00 mi13:37:253:05:058:4911:04
11:04
#19251
35K
21.75 mi13:45:323:13:128:538:07
10:51
#19554
23M
23.00 mi13:59:153:26:559:0013:43
10:57
#19897
24M
24.00 mi14:10:293:38:099:0511:14
11:14
#20243
40K
24.85 mi14:18:413:46:219:068:12
9:35
#20199
25.2M
25.20 mi14:22:183:49:589:083:37
10:29
#20189
Finish
26.22 mi14:30:413:58:219:068:23
8:14
#20016
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi149804521452114394(Top 51%)4259(Top 35%)4259(Top 78%)
10K6.21 mi3.10 mi14217+7634070+4514070+45113523(Top 48%)3682(Top 30%)3682(Top 67%)
15K9.32 mi3.11 mi14272-554124-544124-5414394(Top 51%)4259(Top 35%)4259(Top 78%)
20K12.43 mi3.11 mi15261-9894731-6074731-60717576(Top 62%)6098(Top 50%)6098(Top 112%)
Half13.11 mi0.68 mi15314-534760-294760-2916283(Top 57%)5370(Top 44%)5370(Top 98%)
25K15.53 mi2.42 mi15889-5755100-3405100-34018219(Top 64%)6550(Top 54%)6550(Top 120%)
30K18.64 mi3.11 mi18724-28356785-16856785-168524654(Top 87%)10211(Top 84%)10211(Top 187%)
20M20.00 mi1.36 mi19041-3177005-2207005-22021418(Top 75%)8585(Top 70%)8585(Top 157%)
21M21.00 mi1.00 mi19251-2107147-1427147-14221590(Top 76%)8757(Top 72%)8757(Top 160%)
35K21.75 mi0.75 mi19554-3037339-1927339-19223916(Top 84%)10007(Top 82%)10007(Top 183%)
23M23.00 mi1.25 mi19897-3437564-2257564-22523125(Top 81%)9674(Top 79%)9674(Top 177%)
24M24.00 mi1.00 mi20243-3467777-2137777-21324455(Top 86%)10351(Top 85%)10351(Top 189%)
40K24.85 mi0.85 mi20199+447770+77770+719077(Top 67%)7670(Top 63%)7670(Top 140%)
25.2M25.20 mi0.35 mi20189+107766+47766+419000(Top 67%)7639(Top 62%)7639(Top 140%)
Finish26.22 mi1.02 mi20016+1737687+797687+7914491(Top 51%)5214(Top 43%)5214(Top 95%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 51%
×21story building
+97ft-345ft

Overall

14394

Females

4259

F18-39

4259

5K→10K

3.1 - 6.2 mi

Top 48%
×5story building
+79ft-138ft

Overall

13523

Females

3682

F18-39

3682

10K→15K

6.2 - 9.3 mi

Top 51%
×3story building
+67ft-78ft

Overall

14394

Females

4259

F18-39

4259

15K→20K

9.3 - 12.4 mi

Top 62%
×5story building
+106ft-86ft

Overall

17576

Females

6098

F18-39

6098

20K→Half

12.4 - 13.1 mi

Top 57%
×2story building
+19ft-37ft

Overall

16283

Females

5370

F18-39

5370

Half→25K

13.1 - 15.5 mi

Top 64%
×4story building
+66ft-88ft

Overall

18219

Females

6550

F18-39

6550

25K→30K

15.5 - 18.6 mi

Top 87%
×9story building
+181ft-148ft

Overall

24654

Females

10211

F18-39

10211

30K→20M

18.6 - 20.0 mi

Top 75%
×5story building
+64ft-50ft

Overall

21418

Females

8585

F18-39

8585

20M→21M

20.0 - 21.0 mi

Top 76%
×8story building
+106ft-24ft

Overall

21590

Females

8757

F18-39

8757

21M→35K

21.0 - 21.8 mi

Top 84%
×7story building
+17ft-86ft

Overall

23916

Females

10007

F18-39

10007

35K→23M

21.8 - 23.0 mi

Top 81%
×5story building
+23ft-63ft

Overall

23125

Females

9674

F18-39

9674

23M→24M

23.0 - 24.0 mi

Top 86%
×6story building
+12ft-82ft

Overall

24455

Females

10351

F18-39

10351

24M→40K

24.0 - 24.9 mi

Top 67%
×1story
+6ft-20ft

Overall

19077

Females

7670

F18-39

7670

40K→25.2M

24.9 - 25.2 mi

Top 67%
×1story
+13ft-16ft

Overall

19000

Females

7639

F18-39

7639

25.2M→Finish

25.2 - 26.2 mi

Top 51%
×2story building
+22ft-21ft

Overall

14491

Females

5214

F18-39

5214

Passing Analysis

Category:
Athletes Passed
1597
Passed By
6633
Net Change
-5036
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14980
5K → 10K82764+763#14980#14217
10K → 15K188243-55#14217#14272
15K → 20K591048-989#14272#15261
20K → Half2578-53#15261#15314
Half → 25K58633-575#15314#15889
25K → 30K112846-2835#15889#18724
30K → 20M37354-317#18724#19041
20M → 21M45255-210#19041#19251
21M → 35K10313-303#19251#19554
35K → 23M30373-343#19554#19897
23M → 24M9355-346#19897#20243
24M → 40K7935+44#20243#20199
40K → 25.2M3828+10#20199#20189
25.2M → Finish1818+173#20189#20016
TOTALS15976633-5036
📊

Passing Visuals

Category:
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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