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BOSTON MARATHON 2025

Roberta Kim

Bib: 23707•F

AB

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 40%
Division (F50-54)
#0 / 1303
Top 35%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:06
Rank: #19320
Start → 5K
26:06 | 8:24/mi
10K· 6.21 mi
51:37
Rank: #18663 (+657)
5K → 10K
25:31 | 8:13/mi
15K· 9.32 mi
1:17:16
Rank: #18347 (+316)
10K → 15K
25:39 | 8:15/mi
20K· 12.43 mi
1:43:36
Rank: #18232 (+115)
15K → 20K
26:20 | 8:29/mi
Half· 13.11 mi
1:49:16
Rank: #18203 (+29)
20K → Half
5:40 | 8:18/mi
25K· 15.53 mi
2:09:52
Rank: #17986 (+217)
Half → 25K
20:36 | 8:30/mi
30K· 18.64 mi
2:37:38
Rank: #17829 (+157)
25K → 30K
27:46 | 8:56/mi
20M
2:50:00
Rank: #17780 (+49)
30K → 20M
12:22 | 9:06/mi
21M
2:59:41
Rank: #17730 (+50)
20M → 21M
9:41 | 9:41/mi
35K· 21.75 mi
3:06:27
Rank: #17756 (-26)
21M → 35K
6:46 | 9:03/mi
23M
3:17:46
Rank: #17657 (+99)
35K → 23M
11:19 | 9:02/mi
24M
3:26:39
Rank: #17609 (+48)
23M → 24M
8:53 | 8:53/mi
40K· 24.85 mi
3:34:11
Rank: #17504 (+105)
24M → 40K
7:32 | 8:49/mi
25.2M
3:37:26
Rank: #17463 (+41)
40K → 25.2M
3:15 | 9:25/mi
Finish· 26.22 mi
3:45:58
Rank: #17368 (+95)
25.2M → Finish
8:32 | 8:22/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:49:16
Pace8:20 /mi
2nd Half
Distance13.11 mi
Time1:56:42
Pace8:54 /mi
📊Positive Split: 6.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:0426:068:2426:06
8:24
-
10K
6.21 mi11:49:3551:378:1825:31
8:13
-0:11
15K
9.32 mi12:15:141:17:168:1725:39
8:15
+0:02
20K
12.43 mi12:41:341:43:368:2026:20
8:29
+0:14
Half
13.11 mi12:47:141:49:168:205:40
8:18
-0:11
25K
15.53 mi13:07:502:09:528:2220:36
8:30
+0:12
30K
18.64 mi13:35:362:37:388:2727:46
8:56
+0:26
20M
20.00 mi13:47:582:50:008:3012:22
9:06
+0:10
21M
21.00 mi13:57:392:59:418:339:41
9:41
+0:35
35K
21.75 mi14:04:253:06:278:346:46
9:03
-0:38
23M
23.00 mi14:15:443:17:468:3611:19
9:02
-0:01
24M
24.00 mi14:24:373:26:398:378:53
8:53
-0:09
40K
24.85 mi14:32:093:34:118:377:32
8:49
-0:04
25.2M
25.20 mi14:35:243:37:268:383:15
9:25
+0:36
Finish
26.22 mi14:43:563:45:588:378:32
8:22
-1:03

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

8:13 /mi

Average Pace

8:37 /mi

Slowest Pace

9:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:13:54

86% of race

Time at Steady Pace

32:04

14% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:37 /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 mi11:24:0426:068:2426:06
8:24
#19320
10K
6.21 mi11:49:3551:378:1825:31
8:13
#18663
15K
9.32 mi12:15:141:17:168:1725:39
8:15
#18347
20K
12.43 mi12:41:341:43:368:2026:20
8:29
#18232
Half
13.11 mi12:47:141:49:168:205:40
8:18
#18203
25K
15.53 mi13:07:502:09:528:2220:36
8:30
#17986
30K
18.64 mi13:35:362:37:388:2727:46
8:56
#17829
20M
20.00 mi13:47:582:50:008:3012:22
9:06
#17780
21M
21.00 mi13:57:392:59:418:339:41
9:41
#17730
35K
21.75 mi14:04:253:06:278:346:46
9:03
#17756
23M
23.00 mi14:15:443:17:468:3611:19
9:02
#17657
24M
24.00 mi14:24:373:26:398:378:53
8:53
#17609
40K
24.85 mi14:32:093:34:118:377:32
8:49
#17504
25.2M
25.20 mi14:35:243:37:268:383:15
9:25
#17463
Finish
26.22 mi14:43:563:45:588:378:32
8:22
#17368
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi193207092709217780(Top 63%)6190(Top 51%)6190(Top 475%)
10K6.21 mi3.10 mi18663+6576716+3766716+37617988(Top 63%)6282(Top 51%)6282(Top 482%)
15K9.32 mi3.11 mi18347+3166534+1826534+18217780(Top 63%)6190(Top 51%)6190(Top 475%)
20K12.43 mi3.11 mi18232+1156477+576477+5718069(Top 64%)6379(Top 52%)6379(Top 490%)
Half13.11 mi0.68 mi18203+296461+166461+1617995(Top 63%)6312(Top 52%)6312(Top 484%)
25K15.53 mi2.42 mi17986+2176349+1126349+11217194(Top 61%)5971(Top 49%)5971(Top 458%)
30K18.64 mi3.11 mi17829+1576305+446305+4417357(Top 61%)6222(Top 51%)6222(Top 478%)
20M20.00 mi1.36 mi17780+496305630517331(Top 61%)6328(Top 52%)6328(Top 486%)
21M21.00 mi1.00 mi17730+506286+196286+1916971(Top 60%)6242(Top 51%)6242(Top 479%)
35K21.75 mi0.75 mi17756-266310-246310-2418462(Top 65%)7162(Top 59%)7162(Top 550%)
23M23.00 mi1.25 mi17657+996307+36307+316500(Top 58%)6171(Top 50%)6171(Top 474%)
24M24.00 mi1.00 mi17609+486311-46311-416782(Top 59%)6372(Top 52%)6372(Top 489%)
40K24.85 mi0.85 mi17504+1056282+296282+2915285(Top 54%)5687(Top 47%)5687(Top 436%)
25.2M25.20 mi0.35 mi17463+416265+176265+1714257(Top 50%)5177(Top 42%)5177(Top 397%)
Finish26.22 mi1.02 mi17368+956235+306235+3015428(Top 54%)5717(Top 47%)5717(Top 439%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 63%
×21stories
+97ft-345ft

Overall

17780

Females

6190

F50-54

6190

5K→10K

3.1 - 6.2 mi

Top 63%
×5stories
+79ft-138ft

Overall

17988

Females

6282

F50-54

6282

10K→15K

6.2 - 9.3 mi

Top 63%
×3stories
+67ft-78ft

Overall

17780

Females

6190

F50-54

6190

15K→20K

9.3 - 12.4 mi

Top 64%
×5stories
+106ft-86ft

Overall

18069

Females

6379

F50-54

6379

20K→Half

12.4 - 13.1 mi

Top 63%
×2stories
+19ft-37ft

Overall

17995

Females

6312

F50-54

6312

Half→25K

13.1 - 15.5 mi

Top 61%
×4stories
+66ft-88ft

Overall

17194

Females

5971

F50-54

5971

25K→30K

15.5 - 18.6 mi

Top 61%
×9stories
+181ft-148ft

Overall

17357

Females

6222

F50-54

6222

30K→20M

18.6 - 20.0 mi

Top 61%
×5stories
+64ft-50ft

Overall

17331

Females

6328

F50-54

6328

20M→21M

20.0 - 21.0 mi

Top 60%
×8stories
+106ft-24ft

Overall

16971

Females

6242

F50-54

6242

21M→35K

21.0 - 21.8 mi

Top 65%
×7stories
+17ft-86ft

Overall

18462

Females

7162

F50-54

7162

35K→23M

21.8 - 23.0 mi

Top 58%
×5stories
+23ft-63ft

Overall

16500

Females

6171

F50-54

6171

23M→24M

23.0 - 24.0 mi

Top 59%
×6stories
+12ft-82ft

Overall

16782

Females

6372

F50-54

6372

24M→40K

24.0 - 24.9 mi

Top 54%
×1story
+6ft-20ft

Overall

15285

Females

5687

F50-54

5687

40K→25.2M

24.9 - 25.2 mi

Top 50%
×1story
+13ft-16ft

Overall

14257

Females

5177

F50-54

5177

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2stories
+22ft-21ft

Overall

15428

Females

5717

F50-54

5717

Passing Analysis

Category:
Athletes Passed
2845
Passed By
893
Net Change
+1952
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19320
5K → 10K73275+657#19320#18663
10K → 15K37559+316#18663#18347
15K → 20K240125+115#18347#18232
20K → Half5627+29#18232#18203
Half → 25K27659+217#18203#17986
25K → 30K302145+157#17986#17829
30K → 20M14293+49#17829#17780
20M → 21M12171+50#17780#17730
21M → 35K5884-26#17730#17756
35K → 23M15455+99#17756#17657
23M → 24M10658+48#17657#17609
24M → 40K11813+105#17609#17504
40K → 25.2M498+41#17504#17463
25.2M → Finish11621+95#17463#17368
TOTALS2845893+1952
📊

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