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BOSTON MARATHON 2025

Michelle Kim

Bib: 18285•F

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 34%
Gender (Female)
#0 / 12228
Top 17%
Division (F18-39)
#0 / 5469
Top 31%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:09
Rank: #14569
Start → 5K
24:09 | 7:46/mi
10K· 6.21 mi
46:55
Rank: #12584 (+1985)
5K → 10K
22:46 | 7:20/mi
15K· 9.32 mi
1:09:51
Rank: #11931 (+653)
10K → 15K
22:56 | 7:23/mi
20K· 12.43 mi
1:32:47
Rank: #11366 (+565)
15K → 20K
22:56 | 7:23/mi
Half· 13.11 mi
1:37:47
Rank: #11309 (+57)
20K → Half
5:00 | 7:20/mi
25K· 15.53 mi
1:55:43
Rank: #10886 (+423)
Half → 25K
17:56 | 7:24/mi
30K· 18.64 mi
2:19:27
Rank: #10416 (+470)
25K → 30K
23:44 | 7:38/mi
20M
2:30:04
Rank: #10278 (+138)
30K → 20M
10:37 | 7:49/mi
21M
2:38:13
Rank: #10125 (+153)
20M → 21M
8:09 | 8:09/mi
35K· 21.75 mi
2:43:49
Rank: #10023 (+102)
21M → 35K
5:36 | 7:29/mi
23M
2:53:41
Rank: #9946 (+77)
35K → 23M
9:52 | 7:53/mi
24M
3:01:28
Rank: #9889 (+57)
23M → 24M
7:47 | 7:47/mi
40K· 24.85 mi
3:08:20
Rank: #9888 (+1)
24M → 40K
6:52 | 8:02/mi
25.2M
3:11:21
Rank: #9881 (+7)
40K → 25.2M
3:01 | 8:45/mi
Finish· 26.22 mi
3:18:41
Rank: #9733 (+148)
25.2M → Finish
7:20 | 7:12/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:47
Pace7:28 /mi
2nd Half
Distance13.11 mi
Time1:40:54
Pace7:42 /mi
📊Positive Split: 3.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:2524:097:4624:09
7:46
-
10K
6.21 mi11:38:1146:557:3322:46
7:20
-0:26
15K
9.32 mi12:01:071:09:517:3022:56
7:23
+0:03
20K
12.43 mi12:24:031:32:477:2822:56
7:23
0:00
Half
13.11 mi12:29:031:37:477:285:00
7:20
-0:03
25K
15.53 mi12:46:591:55:437:2717:56
7:24
+0:04
30K
18.64 mi13:10:432:19:277:2923:44
7:38
+0:14
20M
20.00 mi13:21:202:30:047:3010:37
7:49
+0:11
21M
21.00 mi13:29:292:38:137:328:09
8:09
+0:20
35K
21.75 mi13:35:052:43:497:325:36
7:29
-0:40
23M
23.00 mi13:44:572:53:417:339:52
7:53
+0:24
24M
24.00 mi13:52:443:01:287:347:47
7:47
-0:06
40K
24.85 mi13:59:363:08:207:356:52
8:02
+0:15
25.2M
25.20 mi14:02:373:11:217:363:01
8:45
+0:43
Finish
26.22 mi14:09:573:18:417:357:20
7:12
-1:33

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

7:12 /mi

Average Pace

7:35 /mi

Slowest Pace

8:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:38:54

50% of race

Time at Steady Pace

1:11:53

36% of race

Time at Slower Pace

27:54

14% of race

Average Pace: 7:35 /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 mi11:15:2524:097:4624:09
7:46
#14569
10K
6.21 mi11:38:1146:557:3322:46
7:20
#12584
15K
9.32 mi12:01:071:09:517:3022:56
7:23
#11931
20K
12.43 mi12:24:031:32:477:2822:56
7:23
#11366
Half
13.11 mi12:29:031:37:477:285:00
7:20
#11309
25K
15.53 mi12:46:591:55:437:2717:56
7:24
#10886
30K
18.64 mi13:10:432:19:277:2923:44
7:38
#10416
20M
20.00 mi13:21:202:30:047:3010:37
7:49
#10278
21M
21.00 mi13:29:292:38:137:328:09
8:09
#10125
35K
21.75 mi13:35:052:43:497:325:36
7:29
#10023
23M
23.00 mi13:44:572:53:417:339:52
7:53
#9946
24M
24.00 mi13:52:443:01:287:347:47
7:47
#9889
40K
24.85 mi13:59:363:08:207:356:52
8:02
#9888
25.2M
25.20 mi14:02:373:11:217:363:01
8:45
#9881
Finish
26.22 mi14:09:573:18:417:357:20
7:12
#9733
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi145694253425310709(Top 38%)2224(Top 18%)2224(Top 41%)
10K6.21 mi3.10 mi12584+19853116+11373116+113710576(Top 37%)2097(Top 17%)2097(Top 38%)
15K9.32 mi3.11 mi11931+6532788+3282788+32810709(Top 38%)2224(Top 18%)2224(Top 41%)
20K12.43 mi3.11 mi11366+5652535+2532535+2539753(Top 34%)1851(Top 15%)1851(Top 34%)
Half13.11 mi0.68 mi11309+572506+292506+2910327(Top 36%)2107(Top 17%)2107(Top 39%)
25K15.53 mi2.42 mi10886+4232325+1812325+1819152(Top 32%)1708(Top 14%)1708(Top 31%)
30K18.64 mi3.11 mi10416+4702162+1632162+1638760(Top 31%)1730(Top 14%)1730(Top 32%)
20M20.00 mi1.36 mi10278+1382133+292133+299135(Top 32%)2040(Top 17%)2040(Top 37%)
21M21.00 mi1.00 mi10125+1532098+352098+358292(Top 29%)1851(Top 15%)1851(Top 34%)
35K21.75 mi0.75 mi10023+1022079+192079+198567(Top 30%)1933(Top 16%)1933(Top 35%)
23M23.00 mi1.25 mi9946+772086-72086-79170(Top 32%)2331(Top 19%)2331(Top 43%)
24M24.00 mi1.00 mi9889+572082+42082+49701(Top 34%)2655(Top 22%)2655(Top 49%)
40K24.85 mi0.85 mi9888+12128-462128-4610434(Top 37%)3134(Top 26%)3134(Top 57%)
25.2M25.20 mi0.35 mi9881+72138-102138-1010323(Top 36%)3159(Top 26%)3159(Top 58%)
Finish26.22 mi1.02 mi9733+1482108+302108+307060(Top 25%)1678(Top 14%)1678(Top 31%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21stories
+97ft-345ft

Overall

10709

Females

2224

F18-39

2224

5K→10K

3.1 - 6.2 mi

Top 37%
×5stories
+79ft-138ft

Overall

10576

Females

2097

F18-39

2097

10K→15K

6.2 - 9.3 mi

Top 38%
×3stories
+67ft-78ft

Overall

10709

Females

2224

F18-39

2224

15K→20K

9.3 - 12.4 mi

Top 34%
×5stories
+106ft-86ft

Overall

9753

Females

1851

F18-39

1851

20K→Half

12.4 - 13.1 mi

Top 36%
×2stories
+19ft-37ft

Overall

10327

Females

2107

F18-39

2107

Half→25K

13.1 - 15.5 mi

Top 32%
×4stories
+66ft-88ft

Overall

9152

Females

1708

F18-39

1708

25K→30K

15.5 - 18.6 mi

Top 31%
×9stories
+181ft-148ft

Overall

8760

Females

1730

F18-39

1730

30K→20M

18.6 - 20.0 mi

Top 32%
×5stories
+64ft-50ft

Overall

9135

Females

2040

F18-39

2040

20M→21M

20.0 - 21.0 mi

Top 29%
×8stories
+106ft-24ft

Overall

8292

Females

1851

F18-39

1851

21M→35K

21.0 - 21.8 mi

Top 30%
×7stories
+17ft-86ft

Overall

8567

Females

1933

F18-39

1933

35K→23M

21.8 - 23.0 mi

Top 32%
×5stories
+23ft-63ft

Overall

9170

Females

2331

F18-39

2331

23M→24M

23.0 - 24.0 mi

Top 34%
×6stories
+12ft-82ft

Overall

9701

Females

2655

F18-39

2655

24M→40K

24.0 - 24.9 mi

Top 37%
×1story
+6ft-20ft

Overall

10434

Females

3134

F18-39

3134

40K→25.2M

24.9 - 25.2 mi

Top 36%
×1story
+13ft-16ft

Overall

10323

Females

3159

F18-39

3159

25.2M→Finish

25.2 - 26.2 mi

Top 25%
×2stories
+22ft-21ft

Overall

7060

Females

1678

F18-39

1678

Passing Analysis

Category:
Athletes Passed
5235*
Passed By
398
Net Change
+4836
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14569
5K → 10K19916+1985#14569#12584
10K → 15K67118+653#12584#11931
15K → 20K57813+565#11931#11366
20K → Half658+57#11366#11309
Half → 25K43411+423#11309#10886
25K → 30K49828+470#10886#10416
30K → 20M18951+138#10416#10278
20M → 21M18229+153#10278#10125
21M → 35K11715+102#10125#10023
35K → 23M133*56+77#10023#9946
23M → 24M10346+57#9946#9889
24M → 40K7977+1#9889#9888
40K → 25.2M3427+7#9888#9881
25.2M → Finish16113+148#9881#9733
TOTALS5235*398+4836

* 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