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BOSTON MARATHON 2025

Claudine Lee

Bib: 20214•F

ON

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 41%
Masters (Masters Women)
#0 / 6759
Top 27%
Division (F40-44)
#0 / 1718
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:37
Rank: #15953
Start → 5K
24:37 | 7:55/mi
10K· 6.21 mi
49:12
Rank: #15864 (+89)
5K → 10K
24:35 | 7:55/mi
15K· 9.32 mi
1:13:59
Rank: #15822 (+42)
10K → 15K
24:47 | 7:59/mi
20K· 12.43 mi
1:38:57
Rank: #15657 (+165)
15K → 20K
24:58 | 8:02/mi
Half· 13.11 mi
1:44:23
Rank: #15645 (+12)
20K → Half
5:26 | 7:58/mi
25K· 15.53 mi
2:04:16
Rank: #15537 (+108)
Half → 25K
19:53 | 8:12/mi
30K· 18.64 mi
2:31:00
Rank: #15512 (+25)
25K → 30K
26:44 | 8:36/mi
20M
2:43:00
Rank: #15478 (+34)
30K → 20M
12:00 | 8:50/mi
21M
2:52:43
Rank: #15567 (-89)
20M → 21M
9:43 | 9:43/mi
35K· 21.75 mi
2:58:53
Rank: #15502 (+65)
21M → 35K
6:10 | 8:15/mi
23M
3:09:45
Rank: #15385 (+117)
35K → 23M
10:52 | 8:41/mi
24M
3:18:09
Rank: #15298 (+87)
23M → 24M
8:24 | 8:24/mi
40K· 24.85 mi
3:25:23
Rank: #15196 (+102)
24M → 40K
7:14 | 8:28/mi
25.2M
3:28:38
Rank: #15171 (+25)
40K → 25.2M
3:15 | 9:25/mi
Finish· 26.22 mi
3:37:10
Rank: #15181 (-10)
25.2M → Finish
8:32 | 8:22/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:23
Pace7:58 /mi
2nd Half
Distance13.11 mi
Time1:52:47
Pace8:36 /mi
📊Positive Split: 8.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:3724:377:5524:37
7:55
-
10K
6.21 mi11:48:1249:127:5524:35
7:55
0:00
15K
9.32 mi12:12:591:13:597:5624:47
7:59
+0:04
20K
12.43 mi12:37:571:38:577:5824:58
8:02
+0:03
Half
13.11 mi12:43:231:44:237:585:26
7:58
-0:04
25K
15.53 mi13:03:162:04:168:0019:53
8:12
+0:14
30K
18.64 mi13:30:002:31:008:0626:44
8:36
+0:24
20M
20.00 mi13:42:002:43:008:0912:00
8:50
+0:14
21M
21.00 mi13:51:432:52:438:139:43
9:43
+0:53
35K
21.75 mi13:57:532:58:538:146:10
8:15
-1:28
23M
23.00 mi14:08:453:09:458:1510:52
8:41
+0:26
24M
24.00 mi14:17:093:18:098:158:24
8:24
-0:17
40K
24.85 mi14:24:233:25:238:167:14
8:28
+0:04
25.2M
25.20 mi14:27:383:28:388:173:15
9:25
+0:57
Finish
26.22 mi14:36:103:37:108:178:32
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

7:55 /mi

Average Pace

8:17 /mi

Slowest Pace

9:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:44:23

48% of race

Time at Steady Pace

1:16:57

35% of race

Time at Slower Pace

35:50

17% of race

Average Pace: 8:17 /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 mi11:23:3724:377:5524:37
7:55
#15953
10K
6.21 mi11:48:1249:127:5524:35
7:55
#15864
15K
9.32 mi12:12:591:13:597:5624:47
7:59
#15822
20K
12.43 mi12:37:571:38:577:5824:58
8:02
#15657
Half
13.11 mi12:43:231:44:237:585:26
7:58
#15645
25K
15.53 mi13:03:162:04:168:0019:53
8:12
#15537
30K
18.64 mi13:30:002:31:008:0626:44
8:36
#15512
20M
20.00 mi13:42:002:43:008:0912:00
8:50
#15478
21M
21.00 mi13:51:432:52:438:139:43
9:43
#15567
35K
21.75 mi13:57:532:58:538:146:10
8:15
#15502
23M
23.00 mi14:08:453:09:458:1510:52
8:41
#15385
24M
24.00 mi14:17:093:18:098:158:24
8:24
#15298
40K
24.85 mi14:24:233:25:238:167:14
8:28
#15196
25.2M
25.20 mi14:27:383:28:388:173:15
9:25
#15171
Finish
26.22 mi14:36:103:37:108:178:32
8:22
#15181
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi159535119511915878(Top 56%)5080(Top 42%)5080(Top 296%)
10K6.21 mi3.10 mi15864+895056+635056+6315764(Top 55%)4993(Top 41%)4993(Top 291%)
15K9.32 mi3.11 mi15822+425027+295027+2915878(Top 56%)5080(Top 42%)5080(Top 296%)
20K12.43 mi3.11 mi15657+1654962+654962+6515199(Top 54%)4754(Top 39%)4754(Top 277%)
Half13.11 mi0.68 mi15645+124961+14961+115668(Top 55%)4988(Top 41%)4988(Top 290%)
25K15.53 mi2.42 mi15537+1084910+514910+5115331(Top 54%)4916(Top 40%)4916(Top 286%)
30K18.64 mi3.11 mi15512+254954-444954-4415426(Top 54%)5137(Top 42%)5137(Top 299%)
20M20.00 mi1.36 mi15478+344961-74961-715854(Top 56%)5501(Top 45%)5501(Top 320%)
21M21.00 mi1.00 mi15567-895055-945055-9417116(Top 60%)6314(Top 52%)6314(Top 368%)
35K21.75 mi0.75 mi15502+655029+265029+2613941(Top 49%)4653(Top 38%)4653(Top 271%)
23M23.00 mi1.25 mi15385+1175005+245005+2414443(Top 51%)5032(Top 41%)5032(Top 293%)
24M24.00 mi1.00 mi15298+874979+264979+2613912(Top 49%)4779(Top 39%)4779(Top 278%)
40K24.85 mi0.85 mi15196+1024956+234956+2313223(Top 47%)4568(Top 37%)4568(Top 266%)
25.2M25.20 mi0.35 mi15171+254951+54951+514211(Top 50%)5131(Top 42%)5131(Top 299%)
Finish26.22 mi1.02 mi15181-104977-264977-2615404(Top 54%)5693(Top 47%)5693(Top 331%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 56%
×21stories
+97ft-345ft

Overall

15878

Females

5080

F40-44

5080

5K→10K

3.1 - 6.2 mi

Top 55%
×5stories
+79ft-138ft

Overall

15764

Females

4993

F40-44

4993

10K→15K

6.2 - 9.3 mi

Top 56%
×3stories
+67ft-78ft

Overall

15878

Females

5080

F40-44

5080

15K→20K

9.3 - 12.4 mi

Top 54%
×5stories
+106ft-86ft

Overall

15199

Females

4754

F40-44

4754

20K→Half

12.4 - 13.1 mi

Top 55%
×2stories
+19ft-37ft

Overall

15668

Females

4988

F40-44

4988

Half→25K

13.1 - 15.5 mi

Top 54%
×4stories
+66ft-88ft

Overall

15331

Females

4916

F40-44

4916

25K→30K

15.5 - 18.6 mi

Top 54%
×9stories
+181ft-148ft

Overall

15426

Females

5137

F40-44

5137

30K→20M

18.6 - 20.0 mi

Top 56%
×5stories
+64ft-50ft

Overall

15854

Females

5501

F40-44

5501

20M→21M

20.0 - 21.0 mi

Top 60%
×8stories
+106ft-24ft

Overall

17116

Females

6314

F40-44

6314

21M→35K

21.0 - 21.8 mi

Top 49%
×7stories
+17ft-86ft

Overall

13941

Females

4653

F40-44

4653

35K→23M

21.8 - 23.0 mi

Top 51%
×5stories
+23ft-63ft

Overall

14443

Females

5032

F40-44

5032

23M→24M

23.0 - 24.0 mi

Top 49%
×6stories
+12ft-82ft

Overall

13912

Females

4779

F40-44

4779

24M→40K

24.0 - 24.9 mi

Top 47%
×1story
+6ft-20ft

Overall

13223

Females

4568

F40-44

4568

40K→25.2M

24.9 - 25.2 mi

Top 50%
×1story
+13ft-16ft

Overall

14211

Females

5131

F40-44

5131

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2stories
+22ft-21ft

Overall

15404

Females

5693

F40-44

5693

Passing Analysis

Category:
Athletes Passed
2214
Passed By
1442
Net Change
+772
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15953
5K → 10K364275+89#15953#15864
10K → 15K234192+42#15864#15822
15K → 20K283118+165#15822#15657
20K → Half3624+12#15657#15645
Half → 25K225117+108#15645#15537
25K → 30K253228+25#15537#15512
30K → 20M13096+34#15512#15478
20M → 21M88177-89#15478#15567
21M → 35K8924+65#15567#15502
35K → 23M16649+117#15502#15385
23M → 24M11427+87#15385#15298
24M → 40K11816+102#15298#15196
40K → 25.2M4722+25#15196#15171
25.2M → Finish6777-10#15171#15181
TOTALS22141442+772
📊

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