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BOSTON MARATHON 2025

Lynda Nelson

Bib: 21708•F

TX

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 45%
Division (F45-49)
#0 / 1813
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:13
Rank: #19536
Start → 5K
26:13 | 8:26/mi
10K· 6.21 mi
52:11
Rank: #19231 (+305)
5K → 10K
25:58 | 8:21/mi
15K· 9.32 mi
1:18:08
Rank: #18929 (+302)
10K → 15K
25:57 | 8:21/mi
20K· 12.43 mi
1:44:18
Rank: #18613 (+316)
15K → 20K
26:10 | 8:25/mi
Half· 13.11 mi
1:50:01
Rank: #18596 (+17)
20K → Half
5:43 | 8:23/mi
25K· 15.53 mi
2:10:31
Rank: #18275 (+321)
Half → 25K
20:30 | 8:27/mi
30K· 18.64 mi
2:38:09
Rank: #17999 (+276)
25K → 30K
27:38 | 8:54/mi
20M
2:50:28
Rank: #17924 (+75)
30K → 20M
12:19 | 9:04/mi
21M
2:59:57
Rank: #17820 (+104)
20M → 21M
9:29 | 9:29/mi
35K· 21.75 mi
3:07:07
Rank: #17963 (-143)
21M → 35K
7:10 | 9:35/mi
23M
3:19:04
Rank: #18007 (-44)
35K → 23M
11:57 | 9:33/mi
24M
3:28:40
Rank: #18121 (-114)
23M → 24M
9:36 | 9:36/mi
40K· 24.85 mi
3:36:51
Rank: #18161 (-40)
24M → 40K
8:11 | 9:34/mi
25.2M
3:40:19
Rank: #18155 (+6)
40K → 25.2M
3:28 | 10:03/mi
Finish· 26.22 mi
3:49:06
Rank: #18108 (+47)
25.2M → Finish
8:47 | 8:37/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:50:01
Pace8:24 /mi
2nd Half
Distance13.11 mi
Time1:59:05
Pace9:05 /mi
📊Positive Split: 8.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:3726:138:2626:13
8:26
-
10K
6.21 mi11:46:3552:118:2425:58
8:21
-0:05
15K
9.32 mi12:12:321:18:088:2325:57
8:21
0:00
20K
12.43 mi12:38:421:44:188:2426:10
8:25
+0:04
Half
13.11 mi12:44:251:50:018:245:43
8:23
-0:02
25K
15.53 mi13:04:552:10:318:2420:30
8:27
+0:04
30K
18.64 mi13:32:332:38:098:2927:38
8:54
+0:27
20M
20.00 mi13:44:522:50:288:3112:19
9:04
+0:10
21M
21.00 mi13:54:212:59:578:349:29
9:29
+0:25
35K
21.75 mi14:01:313:07:078:367:10
9:35
+0:06
23M
23.00 mi14:13:283:19:048:3911:57
9:33
-0:02
24M
24.00 mi14:23:043:28:408:429:36
9:36
+0:03
40K
24.85 mi14:31:153:36:518:438:11
9:34
-0:02
25.2M
25.20 mi14:34:433:40:198:453:28
10:03
+0:29
Finish
26.22 mi14:43:303:49:068:458:47
8:37
-1:26

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

8:21 /mi

Average Pace

8:45 /mi

Slowest Pace

10:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:10:31

57% of race

Time at Steady Pace

48:44

21% of race

Time at Slower Pace

49:51

22% of race

Average Pace: 8:44 /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 mi11:20:3726:138:2626:13
8:26
#19536
10K
6.21 mi11:46:3552:118:2425:58
8:21
#19231
15K
9.32 mi12:12:321:18:088:2325:57
8:21
#18929
20K
12.43 mi12:38:421:44:188:2426:10
8:25
#18613
Half
13.11 mi12:44:251:50:018:245:43
8:23
#18596
25K
15.53 mi13:04:552:10:318:2420:30
8:27
#18275
30K
18.64 mi13:32:332:38:098:2927:38
8:54
#17999
20M
20.00 mi13:44:522:50:288:3112:19
9:04
#17924
21M
21.00 mi13:54:212:59:578:349:29
9:29
#17820
35K
21.75 mi14:01:313:07:078:367:10
9:35
#17963
23M
23.00 mi14:13:283:19:048:3911:57
9:33
#18007
24M
24.00 mi14:23:043:28:408:429:36
9:36
#18121
40K
24.85 mi14:31:153:36:518:438:11
9:34
#18161
25.2M
25.20 mi14:34:433:40:198:453:28
10:03
#18155
Finish
26.22 mi14:43:303:49:068:458:47
8:37
#18108
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi195367219721918405(Top 65%)6559(Top 54%)6559(Top 362%)
10K6.21 mi3.10 mi19231+3057027+1927027+19218935(Top 67%)6843(Top 56%)6843(Top 377%)
15K9.32 mi3.11 mi18929+3026870+1576870+15718405(Top 65%)6559(Top 54%)6559(Top 362%)
20K12.43 mi3.11 mi18613+3166682+1886682+18817699(Top 62%)6166(Top 50%)6166(Top 340%)
Half13.11 mi0.68 mi18596+176676+66676+618527(Top 65%)6641(Top 54%)6641(Top 366%)
25K15.53 mi2.42 mi18275+3216513+1636513+16316933(Top 60%)5822(Top 48%)5822(Top 321%)
30K18.64 mi3.11 mi17999+2766397+1166397+11617131(Top 60%)6097(Top 50%)6097(Top 336%)
20M20.00 mi1.36 mi17924+756378+196378+1917160(Top 60%)6231(Top 51%)6231(Top 344%)
21M21.00 mi1.00 mi17820+1046332+466332+4616027(Top 56%)5723(Top 47%)5723(Top 316%)
35K21.75 mi0.75 mi17963-1436427-956427-9520615(Top 73%)8297(Top 68%)8297(Top 458%)
23M23.00 mi1.25 mi18007-446498-716498-7118890(Top 67%)7455(Top 61%)7455(Top 411%)
24M24.00 mi1.00 mi18121-1146583-856583-8519993(Top 70%)8075(Top 66%)8075(Top 445%)
40K24.85 mi0.85 mi18161-406632-496632-4919005(Top 67%)7630(Top 62%)7630(Top 421%)
25.2M25.20 mi0.35 mi18155+66643-116643-1117300(Top 61%)6750(Top 55%)6750(Top 372%)
Finish26.22 mi1.02 mi18108+476628+156628+1516993(Top 60%)6561(Top 54%)6561(Top 362%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 65%
×21stories
+97ft-345ft

Overall

18405

Females

6559

F45-49

6559

5K→10K

3.1 - 6.2 mi

Top 67%
×5stories
+79ft-138ft

Overall

18935

Females

6843

F45-49

6843

10K→15K

6.2 - 9.3 mi

Top 65%
×3stories
+67ft-78ft

Overall

18405

Females

6559

F45-49

6559

15K→20K

9.3 - 12.4 mi

Top 62%
×5stories
+106ft-86ft

Overall

17699

Females

6166

F45-49

6166

20K→Half

12.4 - 13.1 mi

Top 65%
×2stories
+19ft-37ft

Overall

18527

Females

6641

F45-49

6641

Half→25K

13.1 - 15.5 mi

Top 60%
×4stories
+66ft-88ft

Overall

16933

Females

5822

F45-49

5822

25K→30K

15.5 - 18.6 mi

Top 60%
×9stories
+181ft-148ft

Overall

17131

Females

6097

F45-49

6097

30K→20M

18.6 - 20.0 mi

Top 60%
×5stories
+64ft-50ft

Overall

17160

Females

6231

F45-49

6231

20M→21M

20.0 - 21.0 mi

Top 56%
×8stories
+106ft-24ft

Overall

16027

Females

5723

F45-49

5723

21M→35K

21.0 - 21.8 mi

Top 73%
×7stories
+17ft-86ft

Overall

20615

Females

8297

F45-49

8297

35K→23M

21.8 - 23.0 mi

Top 67%
×5stories
+23ft-63ft

Overall

18890

Females

7455

F45-49

7455

23M→24M

23.0 - 24.0 mi

Top 70%
×6stories
+12ft-82ft

Overall

19993

Females

8075

F45-49

8075

24M→40K

24.0 - 24.9 mi

Top 67%
×1story
+6ft-20ft

Overall

19005

Females

7630

F45-49

7630

40K→25.2M

24.9 - 25.2 mi

Top 61%
×1story
+13ft-16ft

Overall

17300

Females

6750

F45-49

6750

25.2M→Finish

25.2 - 26.2 mi

Top 60%
×2stories
+22ft-21ft

Overall

16993

Females

6561

F45-49

6561

Passing Analysis

Category:
Athletes Passed
2614
Passed By
1186
Net Change
+1428
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19536
5K → 10K441136+305#19536#19231
10K → 15K37371+302#19231#18929
15K → 20K36751+316#18929#18613
20K → Half4225+17#18613#18596
Half → 25K35130+321#18596#18275
25K → 30K379103+276#18275#17999
30K → 20M15580+75#17999#17924
20M → 21M15450+104#17924#17820
21M → 35K37180-143#17820#17963
35K → 23M95139-44#17963#18007
23M → 24M46160-114#18007#18121
24M → 40K5696-40#18121#18161
40K → 25.2M3226+6#18161#18155
25.2M → Finish8639+47#18155#18108
TOTALS26141186+1428
📊

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