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BOSTON MARATHON 2025

Bailey Sullivan

Bib: 14244•F

MA

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

Start
0:00:00
Race begins
5K· 3.11 mi
24:42
Rank: #16220
Start → 5K
24:42 | 7:57/mi
10K· 6.21 mi
49:29
Rank: #16218 (+2)
5K → 10K
24:47 | 7:59/mi
15K· 9.32 mi
1:14:12
Rank: #16021 (+197)
10K → 15K
24:43 | 7:57/mi
20K· 12.43 mi
1:39:32
Rank: #16007 (+14)
15K → 20K
25:20 | 8:09/mi
Half· 13.11 mi
1:45:11
Rank: #16131 (-124)
20K → Half
5:39 | 8:17/mi
25K· 15.53 mi
2:07:35
Rank: #17037 (-906)
Half → 25K
22:24 | 9:14/mi
30K· 18.64 mi
2:39:26
Rank: #18467 (-1430)
25K → 30K
31:51 | 10:15/mi
20M
2:52:36
Rank: #18597 (-130)
30K → 20M
13:10 | 9:41/mi
21M
3:04:37
Rank: #19130 (-533)
20M → 21M
12:01 | 12:01/mi
35K· 21.75 mi
3:11:18
Rank: #19101 (+29)
21M → 35K
6:41 | 8:56/mi
23M
3:23:26
Rank: #19129 (-28)
35K → 23M
12:08 | 9:41/mi
24M
3:32:56
Rank: #19151 (-22)
23M → 24M
9:30 | 9:30/mi
40K· 24.85 mi
3:40:59
Rank: #19113 (+38)
24M → 40K
8:03 | 9:25/mi
25.2M
3:44:43
Rank: #19121 (-8)
40K → 25.2M
3:44 | 10:50/mi
Finish· 26.22 mi
3:54:18
Rank: #19204 (-83)
25.2M → Finish
9:35 | 9:24/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:11
Pace8:01 /mi
2nd Half
Distance13.11 mi
Time2:09:07
Pace9:51 /mi
📊Positive Split: 22.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:1724:427:5724:42
7:57
-
10K
6.21 mi11:20:0449:297:5824:47
7:59
+0:02
15K
9.32 mi11:44:471:14:127:5824:43
7:57
-0:02
20K
12.43 mi12:10:071:39:328:0125:20
8:09
+0:12
Half
13.11 mi12:15:461:45:118:015:39
8:17
+0:08
25K
15.53 mi12:38:102:07:358:1322:24
9:14
+0:57
30K
18.64 mi13:10:012:39:268:3331:51
10:15
+1:01
20M
20.00 mi13:23:112:52:368:3813:10
9:41
-0:34
21M
21.00 mi13:35:123:04:378:4712:01
12:01
+2:20
35K
21.75 mi13:41:533:11:188:486:41
8:56
-3:05
23M
23.00 mi13:54:013:23:268:5112:08
9:41
+0:45
24M
24.00 mi14:03:313:32:568:529:30
9:30
-0:11
40K
24.85 mi14:11:343:40:598:538:03
9:25
-0:05
25.2M
25.20 mi14:15:183:44:438:553:44
10:50
+1:25
Finish
26.22 mi14:24:533:54:188:579:35
9:24
-1:26

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

7:57 /mi

Average Pace

8:57 /mi

Slowest Pace

12:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:45:11

45% of race

Time at Steady Pace

1:21:31

35% of race

Time at Slower Pace

47:36

20% of race

Average Pace: 8:56 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:55:1724:427:5724:42
7:57
#16220
10K
6.21 mi11:20:0449:297:5824:47
7:59
#16218
15K
9.32 mi11:44:471:14:127:5824:43
7:57
#16021
20K
12.43 mi12:10:071:39:328:0125:20
8:09
#16007
Half
13.11 mi12:15:461:45:118:015:39
8:17
#16131
25K
15.53 mi12:38:102:07:358:1322:24
9:14
#17037
30K
18.64 mi13:10:012:39:268:3331:51
10:15
#18467
20M
20.00 mi13:23:112:52:368:3813:10
9:41
#18597
21M
21.00 mi13:35:123:04:378:4712:01
12:01
#19130
35K
21.75 mi13:41:533:11:188:486:41
8:56
#19101
23M
23.00 mi13:54:013:23:268:5112:08
9:41
#19129
24M
24.00 mi14:03:313:32:568:529:30
9:30
#19151
40K
24.85 mi14:11:343:40:598:538:03
9:25
#19113
25.2M
25.20 mi14:15:183:44:438:553:44
10:50
#19121
Finish
26.22 mi14:24:533:54:188:579:35
9:24
#19204
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi162205283528315724(Top 55%)4988(Top 41%)4988(Top 91%)
10K6.21 mi3.10 mi16218+25278+55278+516315(Top 57%)5322(Top 44%)5322(Top 97%)
15K9.32 mi3.11 mi16021+1975158+1205158+12015724(Top 55%)4988(Top 41%)4988(Top 91%)
20K12.43 mi3.11 mi16007+145154+45154+416029(Top 56%)5231(Top 43%)5231(Top 96%)
Half13.11 mi0.68 mi16131-1245237-835237-8317891(Top 63%)6270(Top 51%)6270(Top 115%)
25K15.53 mi2.42 mi17037-9065789-5525789-55220932(Top 74%)8060(Top 66%)8060(Top 147%)
30K18.64 mi3.11 mi18467-14306646-8576646-85722320(Top 79%)8953(Top 73%)8953(Top 164%)
20M20.00 mi1.36 mi18597-1306741-956741-9519908(Top 70%)7728(Top 63%)7728(Top 141%)
21M21.00 mi1.00 mi19130-5337071-3307071-33023626(Top 83%)9825(Top 80%)9825(Top 180%)
35K21.75 mi0.75 mi19101+297074-37074-317956(Top 63%)6882(Top 56%)6882(Top 126%)
23M23.00 mi1.25 mi19129-287118-447118-4419416(Top 68%)7737(Top 63%)7737(Top 141%)
24M24.00 mi1.00 mi19151-227155-377155-3719638(Top 69%)7899(Top 65%)7899(Top 144%)
40K24.85 mi0.85 mi19113+387156-17156-118370(Top 65%)7319(Top 60%)7319(Top 134%)
25.2M25.20 mi0.35 mi19121-87174-187174-1820138(Top 71%)8228(Top 67%)8228(Top 150%)
Finish26.22 mi1.02 mi19204-837249-757249-7520836(Top 73%)8571(Top 70%)8571(Top 157%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 55%
×21stories
+97ft-345ft

Overall

15724

Females

4988

F18-39

4988

5K→10K

3.1 - 6.2 mi

Top 57%
×5stories
+79ft-138ft

Overall

16315

Females

5322

F18-39

5322

10K→15K

6.2 - 9.3 mi

Top 55%
×3stories
+67ft-78ft

Overall

15724

Females

4988

F18-39

4988

15K→20K

9.3 - 12.4 mi

Top 56%
×5stories
+106ft-86ft

Overall

16029

Females

5231

F18-39

5231

20K→Half

12.4 - 13.1 mi

Top 63%
×2stories
+19ft-37ft

Overall

17891

Females

6270

F18-39

6270

Half→25K

13.1 - 15.5 mi

Top 74%
×4stories
+66ft-88ft

Overall

20932

Females

8060

F18-39

8060

25K→30K

15.5 - 18.6 mi

Top 79%
×9stories
+181ft-148ft

Overall

22320

Females

8953

F18-39

8953

30K→20M

18.6 - 20.0 mi

Top 70%
×5stories
+64ft-50ft

Overall

19908

Females

7728

F18-39

7728

20M→21M

20.0 - 21.0 mi

Top 83%
×8stories
+106ft-24ft

Overall

23626

Females

9825

F18-39

9825

21M→35K

21.0 - 21.8 mi

Top 63%
×7stories
+17ft-86ft

Overall

17956

Females

6882

F18-39

6882

35K→23M

21.8 - 23.0 mi

Top 68%
×5stories
+23ft-63ft

Overall

19416

Females

7737

F18-39

7737

23M→24M

23.0 - 24.0 mi

Top 69%
×6stories
+12ft-82ft

Overall

19638

Females

7899

F18-39

7899

24M→40K

24.0 - 24.9 mi

Top 65%
×1story
+6ft-20ft

Overall

18370

Females

7319

F18-39

7319

40K→25.2M

24.9 - 25.2 mi

Top 71%
×1story
+13ft-16ft

Overall

20138

Females

8228

F18-39

8228

25.2M→Finish

25.2 - 26.2 mi

Top 73%
×2stories
+22ft-21ft

Overall

20836

Females

8571

F18-39

8571

Passing Analysis

Category:
Athletes Passed
1324
Passed By
4308
Net Change
-2984
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16220
5K → 10K296294+2#16220#16218
10K → 15K311114+197#16218#16021
15K → 20K204190+14#16021#16007
20K → Half10134-124#16007#16131
Half → 25K27933-906#16131#17037
25K → 30K331463-1430#17037#18467
30K → 20M71201-130#18467#18597
20M → 21M15548-533#18597#19130
21M → 35K6839+29#19130#19101
35K → 23M81109-28#19101#19129
23M → 24M5880-22#19129#19151
24M → 40K9052+38#19151#19113
40K → 25.2M3139-8#19113#19121
25.2M → Finish29112-83#19121#19204
TOTALS13244308-2984
📊

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