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BOSTON MARATHON 2025

Leigh Stewart Blum

Bib: 23908•F

GA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F45-49)
#0 / 1813
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
29:51
Rank: #24579
Start → 5K
29:51 | 9:36/mi
10K· 6.21 mi
59:50
Rank: #24540 (+39)
5K → 10K
29:59 | 9:39/mi
15K· 9.32 mi
1:30:16
Rank: #24545 (-5)
10K → 15K
30:26 | 9:48/mi
20K· 12.43 mi
2:01:16
Rank: #24439 (+106)
15K → 20K
31:00 | 9:59/mi
Half· 13.11 mi
2:07:52
Rank: #24421 (+18)
20K → Half
6:36 | 9:40/mi
25K· 15.53 mi
2:32:34
Rank: #24303 (+118)
Half → 25K
24:42 | 10:11/mi
30K· 18.64 mi
3:04:56
Rank: #24026 (+277)
25K → 30K
32:22 | 10:25/mi
20M
3:19:03
Rank: #23884 (+142)
30K → 20M
14:07 | 10:23/mi
21M
3:29:46
Rank: #23694 (+190)
20M → 21M
10:43 | 10:43/mi
35K· 21.75 mi
3:37:17
Rank: #23634 (+60)
21M → 35K
7:31 | 10:03/mi
23M
3:50:26
Rank: #23521 (+113)
35K → 23M
13:09 | 10:30/mi
24M
4:00:35
Rank: #23443 (+78)
23M → 24M
10:09 | 10:09/mi
40K· 24.85 mi
4:09:25
Rank: #23349 (+94)
24M → 40K
8:50 | 10:20/mi
25.2M
4:13:03
Rank: #23292 (+57)
40K → 25.2M
3:38 | 10:32/mi
Finish· 26.22 mi
4:21:54
Rank: #23148 (+144)
25.2M → Finish
8:51 | 8:41/mi

Course Map & Elevation

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:07:52
Pace9:45 /mi
2nd Half
Distance13.11 mi
Time2:14:02
Pace10:13 /mi
📊Positive Split: 4.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:31:4929:519:3629:51
9:36
-
10K
6.21 mi12:01:4859:509:3829:59
9:39
+0:03
15K
9.32 mi12:32:141:30:169:4130:26
9:48
+0:09
20K
12.43 mi13:03:142:01:169:4531:00
9:59
+0:11
Half
13.11 mi13:09:502:07:529:456:36
9:40
-0:19
25K
15.53 mi13:34:322:32:349:4924:42
10:11
+0:31
30K
18.64 mi14:06:543:04:569:5532:22
10:25
+0:14
20M
20.00 mi14:21:013:19:039:5714:07
10:23
-0:02
21M
21.00 mi14:31:443:29:469:5910:43
10:43
+0:20
35K
21.75 mi14:39:153:37:179:597:31
10:03
-0:40
23M
23.00 mi14:52:243:50:2610:0113:09
10:30
+0:27
24M
24.00 mi15:02:334:00:3510:0110:09
10:09
-0:21
40K
24.85 mi15:11:234:09:2510:028:50
10:20
+0:11
25.2M
25.20 mi15:15:014:13:0310:033:38
10:32
+0:12
Finish
26.22 mi15:23:524:21:5410:008:51
8:41
-1:51

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

8:41 /mi

Average Pace

10:00 /mi

Slowest Pace

10:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

1:45:43

40% of race

Time at Steady Pace

1:36:19

37% of race

Time at Slower Pace

59:52

23% of race

Average Pace: 9:59 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:31:4929:519:3629:51
9:36
#24579
10K
6.21 mi12:01:4859:509:3829:59
9:39
#24540
15K
9.32 mi12:32:141:30:169:4130:26
9:48
#24545
20K
12.43 mi13:03:142:01:169:4531:00
9:59
#24439
Half
13.11 mi13:09:502:07:529:456:36
9:40
#24421
25K
15.53 mi13:34:322:32:349:4924:42
10:11
#24303
30K
18.64 mi14:06:543:04:569:5532:22
10:25
#24026
20M
20.00 mi14:21:013:19:039:5714:07
10:23
#23884
21M
21.00 mi14:31:443:29:469:5910:43
10:43
#23694
35K
21.75 mi14:39:153:37:179:597:31
10:03
#23634
23M
23.00 mi14:52:243:50:2610:0113:09
10:30
#23521
24M
24.00 mi15:02:334:00:3510:0110:09
10:09
#23443
40K
24.85 mi15:11:234:09:2510:028:50
10:20
#23349
25.2M
25.20 mi15:15:014:13:0310:033:38
10:32
#23292
Finish
26.22 mi15:23:524:21:5410:008:51
8:41
#23148
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi245799999999924539(Top 86%)9977(Top 82%)9977(Top 550%)
10K6.21 mi3.10 mi24540+399971+289971+2824488(Top 86%)9958(Top 81%)9958(Top 549%)
15K9.32 mi3.11 mi24545-59981-109981-1024539(Top 86%)9977(Top 82%)9977(Top 550%)
20K12.43 mi3.11 mi24439+1069938+439938+4324181(Top 85%)9819(Top 80%)9819(Top 542%)
Half13.11 mi0.68 mi24421+189927+119927+1124044(Top 85%)9727(Top 80%)9727(Top 537%)
25K15.53 mi2.42 mi24303+1189881+469881+4623700(Top 83%)9590(Top 78%)9590(Top 529%)
30K18.64 mi3.11 mi24026+2779742+1399742+13922752(Top 80%)9186(Top 75%)9186(Top 507%)
20M20.00 mi1.36 mi23884+1429685+579685+5722131(Top 78%)8975(Top 73%)8975(Top 495%)
21M21.00 mi1.00 mi23694+1909606+799606+7920665(Top 73%)8281(Top 68%)8281(Top 457%)
35K21.75 mi0.75 mi23634+609579+279579+2722060(Top 78%)9068(Top 74%)9068(Top 500%)
23M23.00 mi1.25 mi23521+1139540+399540+3922041(Top 78%)9091(Top 74%)9091(Top 501%)
24M24.00 mi1.00 mi23443+789508+329508+3221810(Top 77%)9042(Top 74%)9042(Top 499%)
40K24.85 mi0.85 mi23349+949482+269482+2621496(Top 76%)8930(Top 73%)8930(Top 493%)
25.2M25.20 mi0.35 mi23292+579462+209462+2019219(Top 68%)7774(Top 64%)7774(Top 429%)
Finish26.22 mi1.02 mi23148+1449406+569406+5617433(Top 61%)6789(Top 56%)6789(Top 374%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 86%
×21stories
+97ft-345ft

Overall

24539

Females

9977

F45-49

9977

5K→10K

3.1 - 6.2 mi

Top 86%
×5stories
+79ft-138ft

Overall

24488

Females

9958

F45-49

9958

10K→15K

6.2 - 9.3 mi

Top 86%
×3stories
+67ft-78ft

Overall

24539

Females

9977

F45-49

9977

15K→20K

9.3 - 12.4 mi

Top 85%
×5stories
+106ft-86ft

Overall

24181

Females

9819

F45-49

9819

20K→Half

12.4 - 13.1 mi

Top 85%
×2stories
+19ft-37ft

Overall

24044

Females

9727

F45-49

9727

Half→25K

13.1 - 15.5 mi

Top 83%
×4stories
+66ft-88ft

Overall

23700

Females

9590

F45-49

9590

25K→30K

15.5 - 18.6 mi

Top 80%
×9stories
+181ft-148ft

Overall

22752

Females

9186

F45-49

9186

30K→20M

18.6 - 20.0 mi

Top 78%
×5stories
+64ft-50ft

Overall

22131

Females

8975

F45-49

8975

20M→21M

20.0 - 21.0 mi

Top 73%
×8stories
+106ft-24ft

Overall

20665

Females

8281

F45-49

8281

21M→35K

21.0 - 21.8 mi

Top 78%
×7stories
+17ft-86ft

Overall

22060

Females

9068

F45-49

9068

35K→23M

21.8 - 23.0 mi

Top 78%
×5stories
+23ft-63ft

Overall

22041

Females

9091

F45-49

9091

23M→24M

23.0 - 24.0 mi

Top 77%
×6stories
+12ft-82ft

Overall

21810

Females

9042

F45-49

9042

24M→40K

24.0 - 24.9 mi

Top 76%
×1story
+6ft-20ft

Overall

21496

Females

8930

F45-49

8930

40K→25.2M

24.9 - 25.2 mi

Top 68%
×1story
+13ft-16ft

Overall

19219

Females

7774

F45-49

7774

25.2M→Finish

25.2 - 26.2 mi

Top 61%
×2stories
+22ft-21ft

Overall

17433

Females

6789

F45-49

6789

Passing Analysis

Category:
Athletes Passed
2037
Passed By
606
Net Change
+1431
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24579
5K → 10K223184+39#24579#24540
10K → 15K140145-5#24540#24545
15K → 20K18579+106#24545#24439
20K → Half3517+18#24439#24421
Half → 25K17557+118#24421#24303
25K → 30K32144+277#24303#24026
30K → 20M15816+142#24026#23884
20M → 21M1966+190#23884#23694
21M → 35K7818+60#23694#23634
35K → 23M13320+113#23634#23521
23M → 24M868+78#23521#23443
24M → 40K1017+94#23443#23349
40K → 25.2M581+57#23349#23292
25.2M → Finish1484+144#23292#23148
TOTALS2037606+1431
📊

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