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BOSTON MARATHON 2025

Carson Stephenson

Bib: 14477•F

MD

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 19%
Gender (Female)
#0 / 12228
Top 4%
Division (F18-39)
#0 / 5469
Top 8%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:49
Rank: #5473
Start → 5K
6:42/mi
20:49 split
10K· 6.21 mi
41:39
Rank: #5409 (+64)
5K → 10K
6:42/mi
20:50 split
15K· 9.32 mi
1:02:33
Rank: #5363 (+46)
10K → 15K
6:44/mi
20:54 split
20K· 12.43 mi
1:23:39
Rank: #5289 (+74)
15K → 20K
6:47/mi
21:06 split
Half· 13.11 mi
1:28:09
Rank: #5211 (+78)
20K → Half
6:36/mi
4:30 split
25K· 15.53 mi
1:45:06
Rank: #5419 (-208)
Half → 25K
6:59/mi
16:57 split
30K· 18.64 mi
2:07:50
Rank: #5656 (-237)
25K → 30K
7:19/mi
22:44 split
20M
2:17:53
Rank: #5704 (-48)
30K → 20M
7:24/mi
10:03 split
21M
2:25:52
Rank: #5728 (-24)
20M → 21M
7:59/mi
7:59 split
35K· 21.75 mi
2:30:58
Rank: #5657 (+71)
21M → 35K
6:49/mi
5:06 split
23M
2:39:59
Rank: #5540 (+117)
35K → 23M
7:12/mi
9:01 split
24M
2:46:56
Rank: #5445 (+95)
23M → 24M
6:57/mi
6:57 split
40K· 24.85 mi
2:52:59
Rank: #5348 (+97)
24M → 40K
7:05/mi
6:03 split
25.2M
2:55:42
Rank: #5318 (+30)
40K → 25.2M
7:53/mi
2:43 split
Finish· 26.22 mi
3:02:51
Rank: #5281 (+37)
25.2M → Finish
7:01/mi
7:09 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:09
Pace6:43 /mi
2nd Half
Distance13.11 mi
Time1:34:42
Pace7:13 /mi
📊Positive Split: 7.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:2120:496:4220:49
6:42
-
10K
6.21 mi11:13:1141:396:4220:50
6:42
0:00
15K
9.32 mi11:34:051:02:336:4320:54
6:44
+0:02
20K
12.43 mi11:55:111:23:396:4421:06
6:47
+0:03
Half
13.11 mi11:59:411:28:096:434:30
6:36
-0:11
25K
15.53 mi12:16:381:45:066:4616:57
6:59
+0:23
30K
18.64 mi12:39:222:07:506:5122:44
7:19
+0:20
20M
20.00 mi12:49:252:17:536:5410:03
7:24
+0:05
21M
21.00 mi12:57:242:25:526:577:59
7:59
+0:35
35K
21.75 mi13:02:302:30:586:565:06
6:49
-1:10
23M
23.00 mi13:11:312:39:596:579:01
7:12
+0:23
24M
24.00 mi13:18:282:46:566:576:57
6:57
-0:15
40K
24.85 mi13:24:312:52:596:586:03
7:05
+0:08
25.2M
25.20 mi13:27:142:55:426:582:43
7:53
+0:48
Finish
26.22 mi13:34:233:02:516:597:09
7:01
-0:52

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

6:36 /mi

Average Pace

6:59 /mi

Slowest Pace

7:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:07:03

37% of race

Time at Steady Pace

1:03:18

35% of race

Time at Slower Pace

52:30

29% of race

Average Pace: 6:58 /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 mi10:52:2120:496:4220:49
6:42
#5473
10K
6.21 mi11:13:1141:396:4220:50
6:42
#5409
15K
9.32 mi11:34:051:02:336:4320:54
6:44
#5363
20K
12.43 mi11:55:111:23:396:4421:06
6:47
#5289
Half
13.11 mi11:59:411:28:096:434:30
6:36
#5211
25K
15.53 mi12:16:381:45:066:4616:57
6:59
#5419
30K
18.64 mi12:39:222:07:506:5122:44
7:19
#5656
20M
20.00 mi12:49:252:17:536:5410:03
7:24
#5704
21M
21.00 mi12:57:242:25:526:577:59
7:59
#5728
35K
21.75 mi13:02:302:30:586:565:06
6:49
#5657
23M
23.00 mi13:11:312:39:596:579:01
7:12
#5540
24M
24.00 mi13:18:282:46:566:576:57
6:57
#5445
40K
24.85 mi13:24:312:52:596:586:03
7:05
#5348
25.2M
25.20 mi13:27:142:55:426:582:43
7:53
#5318
Finish
26.22 mi13:34:233:02:516:597:09
7:01
#5281
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi54733843845359(Top 19%)407(Top 3%)407(Top 7%)
10K6.21 mi3.10 mi5409+64390-6390-65411(Top 19%)399(Top 3%)399(Top 7%)
15K9.32 mi3.11 mi5363+46384+6384+65359(Top 19%)407(Top 3%)407(Top 7%)
20K12.43 mi3.11 mi5289+74381+3381+35241(Top 18%)411(Top 3%)411(Top 8%)
Half13.11 mi0.68 mi5211+78371+10371+104470(Top 16%)289(Top 2%)289(Top 5%)
25K15.53 mi2.42 mi5419-208419-48419-486286(Top 22%)662(Top 5%)662(Top 12%)
30K18.64 mi3.11 mi5656-237479-60479-606545(Top 23%)847(Top 7%)847(Top 15%)
20M20.00 mi1.36 mi5704-48497-18497-186363(Top 22%)903(Top 7%)903(Top 17%)
21M21.00 mi1.00 mi5728-24512-15512-157268(Top 26%)1408(Top 12%)1408(Top 26%)
35K21.75 mi0.75 mi5657+71502+10502+104262(Top 15%)443(Top 4%)443(Top 8%)
23M23.00 mi1.25 mi5540+117501+1501+14905(Top 17%)641(Top 5%)641(Top 12%)
24M24.00 mi1.00 mi5445+95490+11490+114388(Top 15%)547(Top 4%)547(Top 10%)
40K24.85 mi0.85 mi5348+97485+5485+54374(Top 15%)600(Top 5%)600(Top 11%)
25.2M25.20 mi0.35 mi5318+30487-2487-25344(Top 19%)974(Top 8%)974(Top 18%)
Finish26.22 mi1.02 mi5281+37495-8495-85849(Top 21%)1185(Top 10%)1185(Top 22%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 19%
×21stories
+97ft-345ft

Overall

5359

Females

407

F18-39

407

5K→10K

3.1 - 6.2 mi

Top 19%
×5stories
+79ft-138ft

Overall

5411

Females

399

F18-39

399

10K→15K

6.2 - 9.3 mi

Top 19%
×3stories
+67ft-78ft

Overall

5359

Females

407

F18-39

407

15K→20K

9.3 - 12.4 mi

Top 18%
×5stories
+106ft-86ft

Overall

5241

Females

411

F18-39

411

20K→Half

12.4 - 13.1 mi

Top 16%
×2stories
+19ft-37ft

Overall

4470

Females

289

F18-39

289

Half→25K

13.1 - 15.5 mi

Top 22%
×4stories
+66ft-88ft

Overall

6286

Females

662

F18-39

662

25K→30K

15.5 - 18.6 mi

Top 23%
×9stories
+181ft-148ft

Overall

6545

Females

847

F18-39

847

30K→20M

18.6 - 20.0 mi

Top 22%
×5stories
+64ft-50ft

Overall

6363

Females

903

F18-39

903

20M→21M

20.0 - 21.0 mi

Top 26%
×8stories
+106ft-24ft

Overall

7268

Females

1408

F18-39

1408

21M→35K

21.0 - 21.8 mi

Top 15%
×7stories
+17ft-86ft

Overall

4262

Females

443

F18-39

443

35K→23M

21.8 - 23.0 mi

Top 17%
×5stories
+23ft-63ft

Overall

4905

Females

641

F18-39

641

23M→24M

23.0 - 24.0 mi

Top 15%
×6stories
+12ft-82ft

Overall

4388

Females

547

F18-39

547

24M→40K

24.0 - 24.9 mi

Top 15%
×1story
+6ft-20ft

Overall

4374

Females

600

F18-39

600

40K→25.2M

24.9 - 25.2 mi

Top 19%
×1story
+13ft-16ft

Overall

5344

Females

974

F18-39

974

25.2M→Finish

25.2 - 26.2 mi

Top 21%
×2stories
+22ft-21ft

Overall

5849

Females

1185

F18-39

1185

Passing Analysis

Category:
Athletes Passed
1419
Passed By
1227
Net Change
+192
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5473
5K → 10K219155+64#5473#5409
10K → 15K14599+46#5409#5363
15K → 20K15985+74#5363#5289
20K → Half835+78#5289#5211
Half → 25K55263-208#5211#5419
25K → 30K123360-237#5419#5656
30K → 20M52100-48#5656#5704
20M → 21M5680-24#5704#5728
21M → 35K754+71#5728#5657
35K → 23M14023+117#5657#5540
23M → 24M10611+95#5540#5445
24M → 40K1058+97#5445#5348
40K → 25.2M355+30#5348#5318
25.2M → Finish6629+37#5318#5281
TOTALS14191227+192
📊

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