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BOSTON MARATHON 2025

Jin Lee

Bib: 22761•F

PA

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:18
Rank: #19700
Start → 5K
26:18 | 8:28/mi
10K· 6.21 mi
52:39
Rank: #19674 (+26)
5K → 10K
26:21 | 8:29/mi
15K· 9.32 mi
1:19:51
Rank: #20066 (-392)
10K → 15K
27:12 | 8:45/mi
20K· 12.43 mi
1:48:01
Rank: #20367 (-301)
15K → 20K
28:10 | 9:04/mi
Half· 13.11 mi
1:54:03
Rank: #20415 (-48)
20K → Half
6:02 | 8:51/mi
25K· 15.53 mi
2:18:01
Rank: #21021 (-606)
Half → 25K
23:58 | 9:53/mi
30K· 18.64 mi
2:49:25
Rank: #21288 (-267)
25K → 30K
31:24 | 10:06/mi
20M
3:03:55
Rank: #21439 (-151)
30K → 20M
14:30 | 10:40/mi
21M
3:14:39
Rank: #21399 (+40)
20M → 21M
10:44 | 10:44/mi
35K· 21.75 mi
3:21:34
Rank: #21322 (+77)
21M → 35K
6:55 | 9:15/mi
23M
3:33:39
Rank: #21178 (+144)
35K → 23M
12:05 | 9:39/mi
24M
3:42:52
Rank: #21059 (+119)
23M → 24M
9:13 | 9:13/mi
40K· 24.85 mi
3:51:04
Rank: #20986 (+73)
24M → 40K
8:12 | 9:35/mi
25.2M
3:54:33
Rank: #20922 (+64)
40K → 25.2M
3:29 | 10:06/mi
Finish· 26.22 mi
4:03:28
Rank: #20827 (+95)
25.2M → Finish
8:55 | 8:45/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:54:03
Pace8:42 /mi
2nd Half
Distance13.11 mi
Time2:09:25
Pace9:52 /mi
📊Positive Split: 13.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:1726:188:2826:18
8:28
-
10K
6.21 mi11:49:3852:398:2826:21
8:29
+0:01
15K
9.32 mi12:16:501:19:518:3427:12
8:45
+0:16
20K
12.43 mi12:45:001:48:018:4228:10
9:04
+0:19
Half
13.11 mi12:51:021:54:038:426:02
8:51
-0:13
25K
15.53 mi13:15:002:18:018:5323:58
9:53
+1:02
30K
18.64 mi13:46:242:49:259:0531:24
10:06
+0:13
20M
20.00 mi14:00:543:03:559:1214:30
10:40
+0:34
21M
21.00 mi14:11:383:14:399:1610:44
10:44
+0:04
35K
21.75 mi14:18:333:21:349:166:55
9:15
-1:29
23M
23.00 mi14:30:383:33:399:1712:05
9:39
+0:24
24M
24.00 mi14:39:513:42:529:179:13
9:13
-0:26
40K
24.85 mi14:48:033:51:049:188:12
9:35
+0:22
25.2M
25.20 mi14:51:323:54:339:183:29
10:06
+0:31
Finish
26.22 mi15:00:274:03:289:188:55
8:45
-1:21

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

8:28 /mi

Average Pace

9:18 /mi

Slowest Pace

10:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:34:48

39% of race

Time at Steady Pace

52:30

22% of race

Time at Slower Pace

1:36:10

39% of race

Average Pace: 9:17 /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 mi11:23:1726:188:2826:18
8:28
#19700
10K
6.21 mi11:49:3852:398:2826:21
8:29
#19674
15K
9.32 mi12:16:501:19:518:3427:12
8:45
#20066
20K
12.43 mi12:45:001:48:018:4228:10
9:04
#20367
Half
13.11 mi12:51:021:54:038:426:02
8:51
#20415
25K
15.53 mi13:15:002:18:018:5323:58
9:53
#21021
30K
18.64 mi13:46:242:49:259:0531:24
10:06
#21288
20M
20.00 mi14:00:543:03:559:1214:30
10:40
#21439
21M
21.00 mi14:11:383:14:399:1610:44
10:44
#21399
35K
21.75 mi14:18:333:21:349:166:55
9:15
#21322
23M
23.00 mi14:30:383:33:399:1712:05
9:39
#21178
24M
24.00 mi14:39:513:42:529:179:13
9:13
#21059
40K
24.85 mi14:48:033:51:049:188:12
9:35
#20986
25.2M
25.20 mi14:51:323:54:339:183:29
10:06
#20922
Finish
26.22 mi15:00:274:03:289:188:55
8:45
#20827
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi197007330733020795(Top 73%)7884(Top 64%)7884(Top 605%)
10K6.21 mi3.10 mi19674+267287+437287+4319706(Top 69%)7310(Top 60%)7310(Top 561%)
15K9.32 mi3.11 mi20066-3927504-2177504-21720795(Top 73%)7884(Top 64%)7884(Top 605%)
20K12.43 mi3.11 mi20367-3017684-1807684-18021308(Top 75%)8204(Top 67%)8204(Top 630%)
Half13.11 mi0.68 mi20415-487714-307714-3021150(Top 74%)8121(Top 66%)8121(Top 623%)
25K15.53 mi2.42 mi21021-6068049-3358049-33522975(Top 81%)9178(Top 75%)9178(Top 704%)
30K18.64 mi3.11 mi21288-2678241-1928241-19221925(Top 77%)8739(Top 71%)8739(Top 671%)
20M20.00 mi1.36 mi21439-1518345-1048345-10422882(Top 81%)9353(Top 76%)9353(Top 718%)
21M21.00 mi1.00 mi21399+408334+118334+1120690(Top 73%)8289(Top 68%)8289(Top 636%)
35K21.75 mi0.75 mi21322+778302+328302+3219388(Top 68%)7663(Top 63%)7663(Top 588%)
23M23.00 mi1.25 mi21178+1448256+468256+4619297(Top 68%)7675(Top 63%)7675(Top 589%)
24M24.00 mi1.00 mi21059+1198223+338223+3318455(Top 65%)7284(Top 60%)7284(Top 559%)
40K24.85 mi0.85 mi20986+738196+278196+2719081(Top 67%)7674(Top 63%)7674(Top 589%)
25.2M25.20 mi0.35 mi20922+648165+318165+3117556(Top 62%)6910(Top 57%)6910(Top 530%)
Finish26.22 mi1.02 mi20827+958129+368129+3617818(Top 63%)7001(Top 57%)7001(Top 537%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21stories
+97ft-345ft

Overall

20795

Females

7884

F50-54

7884

5K→10K

3.1 - 6.2 mi

Top 69%
×5stories
+79ft-138ft

Overall

19706

Females

7310

F50-54

7310

10K→15K

6.2 - 9.3 mi

Top 73%
×3stories
+67ft-78ft

Overall

20795

Females

7884

F50-54

7884

15K→20K

9.3 - 12.4 mi

Top 75%
×5stories
+106ft-86ft

Overall

21308

Females

8204

F50-54

8204

20K→Half

12.4 - 13.1 mi

Top 74%
×2stories
+19ft-37ft

Overall

21150

Females

8121

F50-54

8121

Half→25K

13.1 - 15.5 mi

Top 81%
×4stories
+66ft-88ft

Overall

22975

Females

9178

F50-54

9178

25K→30K

15.5 - 18.6 mi

Top 77%
×9stories
+181ft-148ft

Overall

21925

Females

8739

F50-54

8739

30K→20M

18.6 - 20.0 mi

Top 81%
×5stories
+64ft-50ft

Overall

22882

Females

9353

F50-54

9353

20M→21M

20.0 - 21.0 mi

Top 73%
×8stories
+106ft-24ft

Overall

20690

Females

8289

F50-54

8289

21M→35K

21.0 - 21.8 mi

Top 68%
×7stories
+17ft-86ft

Overall

19388

Females

7663

F50-54

7663

35K→23M

21.8 - 23.0 mi

Top 68%
×5stories
+23ft-63ft

Overall

19297

Females

7675

F50-54

7675

23M→24M

23.0 - 24.0 mi

Top 65%
×6stories
+12ft-82ft

Overall

18455

Females

7284

F50-54

7284

24M→40K

24.0 - 24.9 mi

Top 67%
×1story
+6ft-20ft

Overall

19081

Females

7674

F50-54

7674

40K→25.2M

24.9 - 25.2 mi

Top 62%
×1story
+13ft-16ft

Overall

17556

Females

6910

F50-54

6910

25.2M→Finish

25.2 - 26.2 mi

Top 63%
×2stories
+22ft-21ft

Overall

17818

Females

7001

F50-54

7001

Passing Analysis

Category:
Athletes Passed
1460
Passed By
2587
Net Change
-1127
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19700
5K → 10K273247+26#19700#19674
10K → 15K94486-392#19674#20066
15K → 20K101402-301#20066#20367
20K → Half1866-48#20367#20415
Half → 25K38644-606#20415#21021
25K → 30K129396-267#21021#21288
30K → 20M69220-151#21288#21439
20M → 21M9555+40#21439#21399
21M → 35K8811+77#21399#21322
35K → 23M16723+144#21322#21178
23M → 24M13415+119#21178#21059
24M → 40K8411+73#21059#20986
40K → 25.2M673+64#20986#20922
25.2M → Finish1038+95#20922#20827
TOTALS14602587-1127
📊

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