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BOSTON MARATHON 2025

Chris Lee

Bib: 18151•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 41%
Division (F50-54)
#0 / 1303
Top 36%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:12
Rank: #19494
Start → 5K
26:12 | 8:26/mi
10K· 6.21 mi
52:28
Rank: #19497 (-3)
5K → 10K
26:16 | 8:27/mi
15K· 9.32 mi
1:19:15
Rank: #19676 (-179)
10K → 15K
26:47 | 8:37/mi
20K· 12.43 mi
1:46:18
Rank: #19617 (+59)
15K → 20K
27:03 | 8:42/mi
Half· 13.11 mi
1:52:07
Rank: #19601 (+16)
20K → Half
5:49 | 8:32/mi
25K· 15.53 mi
2:13:15
Rank: #19384 (+217)
Half → 25K
21:08 | 8:43/mi
30K· 18.64 mi
2:40:21
Rank: #18768 (+616)
25K → 30K
27:06 | 8:43/mi
20M
2:52:05
Rank: #18455 (+313)
30K → 20M
11:44 | 8:38/mi
21M
3:01:56
Rank: #18380 (+75)
20M → 21M
9:51 | 9:51/mi
35K· 21.75 mi
3:08:10
Rank: #18237 (+143)
21M → 35K
6:14 | 8:20/mi
23M
3:19:07
Rank: #18016 (+221)
35K → 23M
10:57 | 8:45/mi
24M
3:27:38
Rank: #17853 (+163)
23M → 24M
8:31 | 8:31/mi
40K· 24.85 mi
3:35:06
Rank: #17724 (+129)
24M → 40K
7:28 | 8:44/mi
25.2M
3:38:26
Rank: #17680 (+44)
40K → 25.2M
3:20 | 9:40/mi
Finish· 26.22 mi
3:46:47
Rank: #17547 (+133)
25.2M → Finish
8:21 | 8:12/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:52:07
Pace8:33 /mi
2nd Half
Distance13.11 mi
Time1:54:40
Pace8:45 /mi
📊Positive Split: 2.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:25:0426:128:2626:12
8:26
-
10K
6.21 mi11:51:2052:288:2726:16
8:27
+0:01
15K
9.32 mi12:18:071:19:158:3026:47
8:37
+0:10
20K
12.43 mi12:45:101:46:188:3327:03
8:42
+0:05
Half
13.11 mi12:50:591:52:078:335:49
8:32
-0:10
25K
15.53 mi13:12:072:13:158:3521:08
8:43
+0:11
30K
18.64 mi13:39:132:40:218:3627:06
8:43
0:00
20M
20.00 mi13:50:572:52:058:3611:44
8:38
-0:05
21M
21.00 mi14:00:483:01:568:409:51
9:51
+1:13
35K
21.75 mi14:07:023:08:108:396:14
8:20
-1:31
23M
23.00 mi14:17:593:19:078:3910:57
8:45
+0:25
24M
24.00 mi14:26:303:27:388:398:31
8:31
-0:14
40K
24.85 mi14:33:583:35:068:397:28
8:44
+0:13
25.2M
25.20 mi14:37:183:38:268:403:20
9:40
+0:56
Finish
26.22 mi14:45:393:46:478:398:21
8:12
-1:28

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

8:12 /mi

Average Pace

8:39 /mi

Slowest Pace

9:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

14:35

6% of race

Time at Steady Pace

3:19:01

88% of race

Time at Slower Pace

13:11

6% of race

Average Pace: 8:39 /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 mi11:25:0426:128:2626:12
8:26
#19494
10K
6.21 mi11:51:2052:288:2726:16
8:27
#19497
15K
9.32 mi12:18:071:19:158:3026:47
8:37
#19676
20K
12.43 mi12:45:101:46:188:3327:03
8:42
#19617
Half
13.11 mi12:50:591:52:078:335:49
8:32
#19601
25K
15.53 mi13:12:072:13:158:3521:08
8:43
#19384
30K
18.64 mi13:39:132:40:218:3627:06
8:43
#18768
20M
20.00 mi13:50:572:52:058:3611:44
8:38
#18455
21M
21.00 mi14:00:483:01:568:409:51
9:51
#18380
35K
21.75 mi14:07:023:08:108:396:14
8:20
#18237
23M
23.00 mi14:17:593:19:078:3910:57
8:45
#18016
24M
24.00 mi14:26:303:27:388:398:31
8:31
#17853
40K
24.85 mi14:33:583:35:068:397:28
8:44
#17724
25.2M
25.20 mi14:37:183:38:268:403:20
9:40
#17680
Finish
26.22 mi14:45:393:46:478:398:21
8:12
#17547
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi194947188718820043(Top 71%)7460(Top 61%)7460(Top 573%)
10K6.21 mi3.10 mi19497-37181+77181+719542(Top 69%)7195(Top 59%)7195(Top 552%)
15K9.32 mi3.11 mi19676-1797276-957276-9520043(Top 71%)7460(Top 61%)7460(Top 573%)
20K12.43 mi3.11 mi19617+597254+227254+2219442(Top 68%)7167(Top 59%)7167(Top 550%)
Half13.11 mi0.68 mi19601+167247+77247+719384(Top 68%)7105(Top 58%)7105(Top 545%)
25K15.53 mi2.42 mi19384+2177137+1107137+11018500(Top 65%)6701(Top 55%)6701(Top 514%)
30K18.64 mi3.11 mi18768+6166809+3286809+32816140(Top 57%)5544(Top 45%)5544(Top 425%)
20M20.00 mi1.36 mi18455+3136671+1386671+13814674(Top 52%)4873(Top 40%)4873(Top 374%)
21M21.00 mi1.00 mi18380+756655+166655+1617716(Top 62%)6649(Top 54%)6649(Top 510%)
35K21.75 mi0.75 mi18237+1436591+646591+6414547(Top 51%)5001(Top 41%)5001(Top 384%)
23M23.00 mi1.25 mi18016+2216503+886503+8814834(Top 52%)5249(Top 43%)5249(Top 403%)
24M24.00 mi1.00 mi17853+1636453+506453+5014664(Top 52%)5200(Top 43%)5200(Top 399%)
40K24.85 mi0.85 mi17724+1296400+536400+5314854(Top 52%)5451(Top 45%)5451(Top 418%)
25.2M25.20 mi0.35 mi17680+446387+136387+1315510(Top 55%)5834(Top 48%)5834(Top 448%)
Finish26.22 mi1.02 mi17547+1336337+506337+5014269(Top 50%)5093(Top 42%)5093(Top 391%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21stories
+97ft-345ft

Overall

20043

Females

7460

F50-54

7460

5K→10K

3.1 - 6.2 mi

Top 69%
×5stories
+79ft-138ft

Overall

19542

Females

7195

F50-54

7195

10K→15K

6.2 - 9.3 mi

Top 71%
×3stories
+67ft-78ft

Overall

20043

Females

7460

F50-54

7460

15K→20K

9.3 - 12.4 mi

Top 68%
×5stories
+106ft-86ft

Overall

19442

Females

7167

F50-54

7167

20K→Half

12.4 - 13.1 mi

Top 68%
×2stories
+19ft-37ft

Overall

19384

Females

7105

F50-54

7105

Half→25K

13.1 - 15.5 mi

Top 65%
×4stories
+66ft-88ft

Overall

18500

Females

6701

F50-54

6701

25K→30K

15.5 - 18.6 mi

Top 57%
×9stories
+181ft-148ft

Overall

16140

Females

5544

F50-54

5544

30K→20M

18.6 - 20.0 mi

Top 52%
×5stories
+64ft-50ft

Overall

14674

Females

4873

F50-54

4873

20M→21M

20.0 - 21.0 mi

Top 62%
×8stories
+106ft-24ft

Overall

17716

Females

6649

F50-54

6649

21M→35K

21.0 - 21.8 mi

Top 51%
×7stories
+17ft-86ft

Overall

14547

Females

5001

F50-54

5001

35K→23M

21.8 - 23.0 mi

Top 52%
×5stories
+23ft-63ft

Overall

14834

Females

5249

F50-54

5249

23M→24M

23.0 - 24.0 mi

Top 52%
×6stories
+12ft-82ft

Overall

14664

Females

5200

F50-54

5200

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

14854

Females

5451

F50-54

5451

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1story
+13ft-16ft

Overall

15510

Females

5834

F50-54

5834

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2stories
+22ft-21ft

Overall

14269

Females

5093

F50-54

5093

Passing Analysis

Category:
Athletes Passed
2930
Passed By
983
Net Change
+1947
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19494
5K → 10K250253-3#19494#19497
10K → 15K141320-179#19497#19676
15K → 20K238179+59#19676#19617
20K → Half4327+16#19617#19601
Half → 25K27861+217#19601#19384
25K → 30K62711+616#19384#18768
30K → 20M3163+313#18768#18455
20M → 21M13560+75#18455#18380
21M → 35K15411+143#18380#18237
35K → 23M23413+221#18237#18016
23M → 24M17815+163#18016#17853
24M → 40K1356+129#17853#17724
40K → 25.2M5612+44#17724#17680
25.2M → Finish14512+133#17680#17547
TOTALS2930983+1947
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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