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BOSTON MARATHON 2025

Sally Kim

Bib: 15901•F

WA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 48%
Gender (Female)
#0 / 12228
Top 34%
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
23:58
Rank: #14106
Start → 5K
23:58 | 7:43/mi
10K· 6.21 mi
48:04
Rank: #14207 (-101)
5K → 10K
24:06 | 7:45/mi
15K· 9.32 mi
1:12:20
Rank: #14303 (-96)
10K → 15K
24:16 | 7:49/mi
20K· 12.43 mi
1:36:48
Rank: #14171 (+132)
15K → 20K
24:28 | 7:53/mi
Half· 13.11 mi
1:42:09
Rank: #14182 (-11)
20K → Half
5:21 | 7:50/mi
25K· 15.53 mi
2:01:33
Rank: #14082 (+100)
Half → 25K
19:24 | 8:00/mi
30K· 18.64 mi
2:27:37
Rank: #14032 (+50)
25K → 30K
26:04 | 8:23/mi
20M
2:38:54
Rank: #13876 (+156)
30K → 20M
11:17 | 8:18/mi
21M
2:47:43
Rank: #13759 (+117)
20M → 21M
8:49 | 8:49/mi
35K· 21.75 mi
2:53:49
Rank: #13720 (+39)
21M → 35K
6:06 | 8:09/mi
23M
3:04:26
Rank: #13653 (+67)
35K → 23M
10:37 | 8:29/mi
24M
3:12:53
Rank: #13693 (-40)
23M → 24M
8:27 | 8:27/mi
40K· 24.85 mi
3:20:07
Rank: #13657 (+36)
24M → 40K
7:14 | 8:28/mi
25.2M
3:23:23
Rank: #13666 (-9)
40K → 25.2M
3:16 | 9:28/mi
Finish· 26.22 mi
3:31:28
Rank: #13613 (+53)
25.2M → Finish
8:05 | 7:56/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:09
Pace7:48 /mi
2nd Half
Distance13.11 mi
Time1:49:19
Pace8:20 /mi
📊Positive Split: 7.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:56:2423:587:4323:58
7:43
-
10K
6.21 mi11:20:3048:047:4424:06
7:45
+0:02
15K
9.32 mi11:44:461:12:207:4624:16
7:49
+0:04
20K
12.43 mi12:09:141:36:487:4724:28
7:53
+0:04
Half
13.11 mi12:14:351:42:097:485:21
7:50
-0:03
25K
15.53 mi12:33:592:01:337:4919:24
8:00
+0:10
30K
18.64 mi13:00:032:27:377:5526:04
8:23
+0:23
20M
20.00 mi13:11:202:38:547:5711:17
8:18
-0:05
21M
21.00 mi13:20:092:47:437:598:49
8:49
+0:31
35K
21.75 mi13:26:152:53:498:006:06
8:09
-0:40
23M
23.00 mi13:36:523:04:268:0110:37
8:29
+0:20
24M
24.00 mi13:45:193:12:538:028:27
8:27
-0:02
40K
24.85 mi13:52:333:20:078:037:14
8:28
+0:01
25.2M
25.20 mi13:55:493:23:238:043:16
9:28
+1:00
Finish
26.22 mi14:03:543:31:288:048:05
7:56
-1:32

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

7:43 /mi

Average Pace

8:04 /mi

Slowest Pace

9:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:42:09

48% of race

Time at Steady Pace

44:52

21% of race

Time at Slower Pace

1:04:27

30% of race

Average Pace: 8:04 /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 mi10:56:2423:587:4323:58
7:43
#14106
10K
6.21 mi11:20:3048:047:4424:06
7:45
#14207
15K
9.32 mi11:44:461:12:207:4624:16
7:49
#14303
20K
12.43 mi12:09:141:36:487:4724:28
7:53
#14171
Half
13.11 mi12:14:351:42:097:485:21
7:50
#14182
25K
15.53 mi12:33:592:01:337:4919:24
8:00
#14082
30K
18.64 mi13:00:032:27:377:5526:04
8:23
#14032
20M
20.00 mi13:11:202:38:547:5711:17
8:18
#13876
21M
21.00 mi13:20:092:47:437:598:49
8:49
#13759
35K
21.75 mi13:26:152:53:498:006:06
8:09
#13720
23M
23.00 mi13:36:523:04:268:0110:37
8:29
#13653
24M
24.00 mi13:45:193:12:538:028:27
8:27
#13693
40K
24.85 mi13:52:333:20:078:037:14
8:28
#13657
25.2M
25.20 mi13:55:493:23:238:043:16
9:28
#13666
Finish
26.22 mi14:03:543:31:288:048:05
7:56
#13613
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi141063977397714476(Top 51%)4296(Top 35%)4296(Top 79%)
10K6.21 mi3.10 mi14207-1014060-834060-8314421(Top 51%)4203(Top 34%)4203(Top 77%)
15K9.32 mi3.11 mi14303-964137-774137-7714476(Top 51%)4296(Top 35%)4296(Top 79%)
20K12.43 mi3.11 mi14171+1324103+344103+3413899(Top 49%)4036(Top 33%)4036(Top 74%)
Half13.11 mi0.68 mi14182-114113-104113-1014649(Top 52%)4416(Top 36%)4416(Top 81%)
25K15.53 mi2.42 mi14082+1004091+224091+2213922(Top 49%)4163(Top 34%)4163(Top 76%)
30K18.64 mi3.11 mi14032+504125-344125-3414085(Top 50%)4421(Top 36%)4421(Top 81%)
20M20.00 mi1.36 mi13876+1564073+524073+5212537(Top 44%)3720(Top 30%)3720(Top 68%)
21M21.00 mi1.00 mi13759+1174036+374036+3712432(Top 44%)3825(Top 31%)3825(Top 70%)
35K21.75 mi0.75 mi13720+394034+24034+213332(Top 47%)4331(Top 35%)4331(Top 79%)
23M23.00 mi1.25 mi13653+674038-44038-413194(Top 46%)4371(Top 36%)4371(Top 80%)
24M24.00 mi1.00 mi13693-404086-484086-4814211(Top 50%)4930(Top 40%)4930(Top 90%)
40K24.85 mi0.85 mi13657+364092-64092-613201(Top 46%)4546(Top 37%)4546(Top 83%)
25.2M25.20 mi0.35 mi13666-94112-204112-2014463(Top 51%)5252(Top 43%)5252(Top 96%)
Finish26.22 mi1.02 mi13613+534107+54107+512449(Top 44%)4157(Top 34%)4157(Top 76%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 51%
×21stories
+97ft-345ft

Overall

14476

Females

4296

F18-39

4296

5K→10K

3.1 - 6.2 mi

Top 51%
×5stories
+79ft-138ft

Overall

14421

Females

4203

F18-39

4203

10K→15K

6.2 - 9.3 mi

Top 51%
×3stories
+67ft-78ft

Overall

14476

Females

4296

F18-39

4296

15K→20K

9.3 - 12.4 mi

Top 49%
×5stories
+106ft-86ft

Overall

13899

Females

4036

F18-39

4036

20K→Half

12.4 - 13.1 mi

Top 52%
×2stories
+19ft-37ft

Overall

14649

Females

4416

F18-39

4416

Half→25K

13.1 - 15.5 mi

Top 49%
×4stories
+66ft-88ft

Overall

13922

Females

4163

F18-39

4163

25K→30K

15.5 - 18.6 mi

Top 50%
×9stories
+181ft-148ft

Overall

14085

Females

4421

F18-39

4421

30K→20M

18.6 - 20.0 mi

Top 44%
×5stories
+64ft-50ft

Overall

12537

Females

3720

F18-39

3720

20M→21M

20.0 - 21.0 mi

Top 44%
×8stories
+106ft-24ft

Overall

12432

Females

3825

F18-39

3825

21M→35K

21.0 - 21.8 mi

Top 47%
×7stories
+17ft-86ft

Overall

13332

Females

4331

F18-39

4331

35K→23M

21.8 - 23.0 mi

Top 46%
×5stories
+23ft-63ft

Overall

13194

Females

4371

F18-39

4371

23M→24M

23.0 - 24.0 mi

Top 50%
×6stories
+12ft-82ft

Overall

14211

Females

4930

F18-39

4930

24M→40K

24.0 - 24.9 mi

Top 46%
×1story
+6ft-20ft

Overall

13201

Females

4546

F18-39

4546

40K→25.2M

24.9 - 25.2 mi

Top 51%
×1story
+13ft-16ft

Overall

14463

Females

5252

F18-39

5252

25.2M→Finish

25.2 - 26.2 mi

Top 44%
×2stories
+22ft-21ft

Overall

12449

Females

4157

F18-39

4157

Passing Analysis

Category:
Athletes Passed
2055
Passed By
1562
Net Change
+493
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14106
5K → 10K219320-101#14106#14207
10K → 15K164260-96#14207#14303
15K → 20K278146+132#14303#14171
20K → Half2435-11#14171#14182
Half → 25K213113+100#14182#14082
25K → 30K280230+50#14082#14032
30K → 20M19842+156#14032#13876
20M → 21M16346+117#13876#13759
21M → 35K7435+39#13759#13720
35K → 23M14376+67#13720#13653
23M → 24M72112-40#13653#13693
24M → 40K9963+36#13693#13657
40K → 25.2M3443-9#13657#13666
25.2M → Finish9441+53#13666#13613
TOTALS20551562+493
📊

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