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BOSTON MARATHON 2025

Danielle Lembo

Bib: 16638•F

MA

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
29:07
Rank: #23821
Start → 5K
29:07 | 9:22/mi
10K· 6.21 mi
59:07
Rank: #24222 (-401)
5K → 10K
30:00 | 9:39/mi
15K· 9.32 mi
1:29:20
Rank: #24278 (-56)
10K → 15K
30:13 | 9:44/mi
20K· 12.43 mi
2:00:28
Rank: #24286 (-8)
15K → 20K
31:08 | 10:01/mi
Half· 13.11 mi
2:07:11
Rank: #24301 (-15)
20K → Half
6:43 | 9:51/mi
25K· 15.53 mi
2:31:31
Rank: #24112 (+189)
Half → 25K
24:20 | 10:02/mi
30K· 18.64 mi
3:04:20
Rank: #23923 (+189)
25K → 30K
32:49 | 10:34/mi
20M
3:18:32
Rank: #23811 (+112)
30K → 20M
14:12 | 10:27/mi
21M
3:29:47
Rank: #23698 (+113)
20M → 21M
11:15 | 11:15/mi
35K· 21.75 mi
3:37:42
Rank: #23696 (+2)
21M → 35K
7:55 | 10:35/mi
23M
3:50:50
Rank: #23566 (+130)
35K → 23M
13:08 | 10:29/mi
24M
4:01:27
Rank: #23550 (+16)
23M → 24M
10:37 | 10:37/mi
40K· 24.85 mi
4:10:29
Rank: #23503 (+47)
24M → 40K
9:02 | 10:34/mi
25.2M
4:14:30
Rank: #23476 (+27)
40K → 25.2M
4:01 | 11:39/mi
Finish· 26.22 mi
4:24:43
Rank: #23464 (+12)
25.2M → Finish
10:13 | 10:02/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:07:11
Pace9:42 /mi
2nd Half
Distance13.11 mi
Time2:17:32
Pace10:29 /mi
📊Positive Split: 8.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:02:4829:079:2229:07
9:22
-
10K
6.21 mi11:32:4859:079:3130:00
9:39
+0:17
15K
9.32 mi12:03:011:29:209:3530:13
9:44
+0:05
20K
12.43 mi12:34:092:00:289:4231:08
10:01
+0:17
Half
13.11 mi12:40:522:07:119:426:43
9:51
-0:10
25K
15.53 mi13:05:122:31:319:4524:20
10:02
+0:11
30K
18.64 mi13:38:013:04:209:5332:49
10:34
+0:32
20M
20.00 mi13:52:133:18:329:5614:12
10:27
-0:07
21M
21.00 mi14:03:283:29:479:5911:15
11:15
+0:48
35K
21.75 mi14:11:233:37:4210:017:55
10:35
-0:40
23M
23.00 mi14:24:313:50:5010:0213:08
10:29
-0:06
24M
24.00 mi14:35:084:01:2710:0410:37
10:37
+0:08
40K
24.85 mi14:44:104:10:2910:059:02
10:34
-0:03
25.2M
25.20 mi14:48:114:14:3010:064:01
11:39
+1:05
Finish
26.22 mi14:58:244:24:4310:0610:13
10:02
-1:37

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

9:22 /mi

Average Pace

10:06 /mi

Slowest Pace

11:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:41:44

61% of race

Time at Steady Pace

1:27:43

33% of race

Time at Slower Pace

15:16

6% of race

Average Pace: 10:06 /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 mi11:02:4829:079:2229:07
9:22
#23821
10K
6.21 mi11:32:4859:079:3130:00
9:39
#24222
15K
9.32 mi12:03:011:29:209:3530:13
9:44
#24278
20K
12.43 mi12:34:092:00:289:4231:08
10:01
#24286
Half
13.11 mi12:40:522:07:119:426:43
9:51
#24301
25K
15.53 mi13:05:122:31:319:4524:20
10:02
#24112
30K
18.64 mi13:38:013:04:209:5332:49
10:34
#23923
20M
20.00 mi13:52:133:18:329:5614:12
10:27
#23811
21M
21.00 mi14:03:283:29:479:5911:15
11:15
#23698
35K
21.75 mi14:11:233:37:4210:017:55
10:35
#23696
23M
23.00 mi14:24:313:50:5010:0213:08
10:29
#23566
24M
24.00 mi14:35:084:01:2710:0410:37
10:37
#23550
40K
24.85 mi14:44:104:10:2910:059:02
10:34
#23503
25.2M
25.20 mi14:48:114:14:3010:064:01
11:39
#23476
Finish
26.22 mi14:58:244:24:4310:0610:13
10:02
#23464
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi238219598959824354(Top 86%)9873(Top 81%)9873(Top 758%)
10K6.21 mi3.10 mi24222-4019807-2099807-20924501(Top 86%)9964(Top 81%)9964(Top 765%)
15K9.32 mi3.11 mi24278-569830-239830-2324354(Top 86%)9873(Top 81%)9873(Top 758%)
20K12.43 mi3.11 mi24286-89854-249854-2424267(Top 85%)9862(Top 81%)9862(Top 757%)
Half13.11 mi0.68 mi24301-159869-159869-1524498(Top 86%)9992(Top 82%)9992(Top 767%)
25K15.53 mi2.42 mi24112+1899767+1029767+10223359(Top 82%)9399(Top 77%)9399(Top 721%)
30K18.64 mi3.11 mi23923+1899687+809687+8023082(Top 81%)9364(Top 77%)9364(Top 719%)
20M20.00 mi1.36 mi23811+1129649+389649+3822296(Top 78%)9059(Top 74%)9059(Top 695%)
21M21.00 mi1.00 mi23698+1139607+429607+4222060(Top 78%)9006(Top 74%)9006(Top 691%)
35K21.75 mi0.75 mi23696+29612-59612-523352(Top 82%)9731(Top 80%)9731(Top 747%)
23M23.00 mi1.25 mi23566+1309562+509562+5022004(Top 77%)9074(Top 74%)9074(Top 696%)
24M24.00 mi1.00 mi23550+169571-99571-923126(Top 81%)9696(Top 79%)9696(Top 744%)
40K24.85 mi0.85 mi23503+479561+109561+1022114(Top 78%)9264(Top 76%)9264(Top 711%)
25.2M25.20 mi0.35 mi23476+279558+39558+322478(Top 79%)9401(Top 77%)9401(Top 721%)
Finish26.22 mi1.02 mi23464+129569-119569-1123030(Top 81%)9678(Top 79%)9678(Top 743%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 86%
×21stories
+97ft-345ft

Overall

24354

Females

9873

F50-54

9873

5K→10K

3.1 - 6.2 mi

Top 86%
×5stories
+79ft-138ft

Overall

24501

Females

9964

F50-54

9964

10K→15K

6.2 - 9.3 mi

Top 86%
×3stories
+67ft-78ft

Overall

24354

Females

9873

F50-54

9873

15K→20K

9.3 - 12.4 mi

Top 85%
×5stories
+106ft-86ft

Overall

24267

Females

9862

F50-54

9862

20K→Half

12.4 - 13.1 mi

Top 86%
×2stories
+19ft-37ft

Overall

24498

Females

9992

F50-54

9992

Half→25K

13.1 - 15.5 mi

Top 82%
×4stories
+66ft-88ft

Overall

23359

Females

9399

F50-54

9399

25K→30K

15.5 - 18.6 mi

Top 81%
×9stories
+181ft-148ft

Overall

23082

Females

9364

F50-54

9364

30K→20M

18.6 - 20.0 mi

Top 78%
×5stories
+64ft-50ft

Overall

22296

Females

9059

F50-54

9059

20M→21M

20.0 - 21.0 mi

Top 78%
×8stories
+106ft-24ft

Overall

22060

Females

9006

F50-54

9006

21M→35K

21.0 - 21.8 mi

Top 82%
×7stories
+17ft-86ft

Overall

23352

Females

9731

F50-54

9731

35K→23M

21.8 - 23.0 mi

Top 77%
×5stories
+23ft-63ft

Overall

22004

Females

9074

F50-54

9074

23M→24M

23.0 - 24.0 mi

Top 81%
×6stories
+12ft-82ft

Overall

23126

Females

9696

F50-54

9696

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

22114

Females

9264

F50-54

9264

40K→25.2M

24.9 - 25.2 mi

Top 79%
×1story
+13ft-16ft

Overall

22478

Females

9401

F50-54

9401

25.2M→Finish

25.2 - 26.2 mi

Top 81%
×2stories
+22ft-21ft

Overall

23030

Females

9678

F50-54

9678

Passing Analysis

Category:
Athletes Passed
1522
Passed By
1165
Net Change
+357
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23821
5K → 10K95496-401#23821#24222
10K → 15K125181-56#24222#24278
15K → 20K136144-8#24278#24286
20K → Half1833-15#24286#24301
Half → 25K21526+189#24301#24112
25K → 30K25263+189#24112#23923
30K → 20M13725+112#23923#23811
20M → 21M13421+113#23811#23698
21M → 35K4240+2#23698#23696
35K → 23M14515+130#23696#23566
23M → 24M5640+16#23566#23550
24M → 40K7023+47#23550#23503
40K → 25.2M4316+27#23503#23476
25.2M → Finish5442+12#23476#23464
TOTALS15221165+357
📊

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