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BOSTON MARATHON 2025

Jimi Lee

Bib: 20597•F

CA

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

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:24/mi
26:05
↑ 97↓ 3451.5%
10K· 6.21 mi
8:59/mi
54:01
↑ 79↓ 1380.4%
15K· 9.32 mi
8:31/mi
1:20:30
↑ 67↓ 78
20K· 12.43 mi
10:12/mi
1:52:11
↑ 106↓ 860.1%
Half· 13.11 mi
8:23/mi
1:57:54
↑ 19↓ 370.5%
25K· 15.53 mi
10:21/mi
2:23:00
↑ 66↓ 880.2%
30K· 18.64 mi
10:41/mi
2:56:11
↑ 181↓ 1480.2%
20M
10:01/mi
3:09:48
↑ 64↓ 500.2%
21M
11:46/mi
3:21:34
↑ 106↓ 241.6%
35K· 21.75 mi
9:43/mi
3:28:50
↑ 17↓ 861.7%
23M
10:15/mi
3:41:40
↑ 23↓ 630.6%
24M
10:13/mi
3:51:53
↓ 821.3%
40K· 24.85 mi
10:16/mi
4:00:40
↓ 200.3%
25.2M
11:19/mi
4:04:34
↑ 13↓ 160.2%
Finish· 26.22 mi
9:58/mi
4:14:43
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:57:54
Pace9:00 /mi
2nd Half
Distance13.11 mi
Time2:16:49
Pace10:26 /mi
📊Positive Split: 16.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:1126:058:2426:05
8:24
-
10K
6.21 mi11:48:0754:018:4227:56
8:59
+0:35
15K
9.32 mi12:14:361:20:308:3826:29
8:31
-0:28
20K
12.43 mi12:46:171:52:119:0231:41
10:12
+1:41
Half
13.11 mi12:52:001:57:549:005:43
8:23
-1:49
25K
15.53 mi13:17:062:23:009:1225:06
10:21
+1:58
30K
18.64 mi13:50:172:56:119:2733:11
10:41
+0:20
20M
20.00 mi14:03:543:09:489:2913:37
10:01
-0:40
21M
21.00 mi14:15:403:21:349:3611:46
11:46
+1:45
35K
21.75 mi14:22:563:28:509:367:16
9:43
-2:03
23M
23.00 mi14:35:463:41:409:3812:50
10:15
+0:32
24M
24.00 mi14:45:593:51:539:4010:13
10:13
-0:02
40K
24.85 mi14:54:464:00:409:418:47
10:16
+0:03
25.2M
25.20 mi14:58:404:04:349:423:54
11:19
+1:03
Finish
26.22 mi15:08:494:14:439:4310:09
9:58
-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

8:23 /mi

Average Pace

9:43 /mi

Slowest Pace

11:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:26:13

34% of race

Time at Steady Pace

2:32:50

60% of race

Time at Slower Pace

15:40

6% of race

Average Pace: 9:43 /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 mi11:20:1126:058:2426:05
8:24
#19298
10K
6.21 mi11:48:0754:018:4227:56
8:59
#20885
15K
9.32 mi12:14:361:20:308:3826:29
8:31
#20409
20K
12.43 mi12:46:171:52:119:0231:41
10:12
#22051
Half
13.11 mi12:52:001:57:549:005:43
8:23
#21893
25K
15.53 mi13:17:062:23:009:1225:06
10:21
#22454
30K
18.64 mi13:50:172:56:119:2733:11
10:41
#22660
20M
20.00 mi14:03:543:09:489:2913:37
10:01
#22527
21M
21.00 mi14:15:403:21:349:3611:46
11:46
#22558
35K
21.75 mi14:22:563:28:509:367:16
9:43
#22493
23M
23.00 mi14:35:463:41:409:3812:50
10:15
#22408
24M
24.00 mi14:45:593:51:539:4010:13
10:13
#22380
40K
24.85 mi14:54:464:00:409:418:47
10:16
#22329
25.2M
25.20 mi14:58:404:04:349:423:54
11:19
#22306
Finish
26.22 mi15:08:494:14:439:4310:09
9:58
#22318
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi192987082708219489(Top 69%)7168(Top 59%)7168(Top 550%)
10K6.21 mi3.10 mi20885-15877993-9117993-91122368(Top 79%)8798(Top 72%)8798(Top 675%)
15K9.32 mi3.11 mi20409+4767707+2867707+28619489(Top 69%)7168(Top 59%)7168(Top 550%)
20K12.43 mi3.11 mi22051-16428625-9188625-91824636(Top 87%)10067(Top 82%)10067(Top 773%)
Half13.11 mi0.68 mi21893+1588547+788547+7818556(Top 65%)6670(Top 55%)6670(Top 512%)
25K15.53 mi2.42 mi22454-5618842-2958842-29524079(Top 85%)9783(Top 80%)9783(Top 751%)
30K18.64 mi3.11 mi22660-2068998-1568998-15623352(Top 82%)9527(Top 78%)9527(Top 731%)
20M20.00 mi1.36 mi22527+1338950+488950+4821035(Top 74%)8384(Top 69%)8384(Top 643%)
21M21.00 mi1.00 mi22558-318979-298979-2923158(Top 82%)9577(Top 78%)9577(Top 735%)
35K21.75 mi0.75 mi22493+658961+188961+1821069(Top 74%)8544(Top 70%)8544(Top 656%)
23M23.00 mi1.25 mi22408+858946+158946+1521283(Top 75%)8696(Top 71%)8696(Top 667%)
24M24.00 mi1.00 mi22380+288949-38949-321995(Top 77%)9131(Top 75%)9131(Top 701%)
40K24.85 mi0.85 mi22329+518937+128937+1221312(Top 75%)8826(Top 72%)8826(Top 677%)
25.2M25.20 mi0.35 mi22306+238935+28935+221586(Top 76%)8955(Top 73%)8955(Top 687%)
Finish26.22 mi1.02 mi22318-128955-208955-2022821(Top 80%)9579(Top 78%)9579(Top 735%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21story building
+97ft-345ft

Overall

19489

Females

7168

F50-54

7168

5K→10K

3.1 - 6.2 mi

Top 79%
×5story building
+79ft-138ft

Overall

22368

Females

8798

F50-54

8798

10K→15K

6.2 - 9.3 mi

Top 69%
×3story building
+67ft-78ft

Overall

19489

Females

7168

F50-54

7168

15K→20K

9.3 - 12.4 mi

Top 87%
×5story building
+106ft-86ft

Overall

24636

Females

10067

F50-54

10067

20K→Half

12.4 - 13.1 mi

Top 65%
×2story building
+19ft-37ft

Overall

18556

Females

6670

F50-54

6670

Half→25K

13.1 - 15.5 mi

Top 85%
×4story building
+66ft-88ft

Overall

24079

Females

9783

F50-54

9783

25K→30K

15.5 - 18.6 mi

Top 82%
×9story building
+181ft-148ft

Overall

23352

Females

9527

F50-54

9527

30K→20M

18.6 - 20.0 mi

Top 74%
×5story building
+64ft-50ft

Overall

21035

Females

8384

F50-54

8384

20M→21M

20.0 - 21.0 mi

Top 82%
×8story building
+106ft-24ft

Overall

23158

Females

9577

F50-54

9577

21M→35K

21.0 - 21.8 mi

Top 74%
×7story building
+17ft-86ft

Overall

21069

Females

8544

F50-54

8544

35K→23M

21.8 - 23.0 mi

Top 75%
×5story building
+23ft-63ft

Overall

21283

Females

8696

F50-54

8696

23M→24M

23.0 - 24.0 mi

Top 77%
×6story building
+12ft-82ft

Overall

21995

Females

9131

F50-54

9131

24M→40K

24.0 - 24.9 mi

Top 75%
×1story
+6ft-20ft

Overall

21312

Females

8826

F50-54

8826

40K→25.2M

24.9 - 25.2 mi

Top 76%
×1story
+13ft-16ft

Overall

21586

Females

8955

F50-54

8955

25.2M→Finish

25.2 - 26.2 mi

Top 80%
×2story building
+22ft-21ft

Overall

22821

Females

9579

F50-54

9579

Passing Analysis

Category:
Athletes Passed
1451
Passed By
4471
Net Change
-3020
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19298
5K → 10K151602-1587#19298#20885
10K → 15K51640+476#20885#20409
15K → 20K141656-1642#20409#22051
20K → Half1580+158#22051#21893
Half → 25K29590-561#21893#22454
25K → 30K115321-206#22454#22660
30K → 20M15320+133#22660#22527
20M → 21M6091-31#22527#22558
21M → 35K8015+65#22558#22493
35K → 23M10924+85#22493#22408
23M → 24M7143+28#22408#22380
24M → 40K6817+51#22380#22329
40K → 25.2M318+23#22329#22306
25.2M → Finish3244-12#22306#22318
TOTALS14514471-3020
📊

Passing Visuals

Category:
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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