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BOSTON MARATHON 2025

Lisa Nelson

Bib: 14435•F

WA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 37%
Masters (Masters Women)
#0 / 6759
Top 22%
Division (F40-44)
#0 / 1718
Top 44%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:07
Rank: #11727
Start → 5K
23:07 | 7:26/mi
10K· 6.21 mi
46:51
Rank: #12489 (-762)
5K → 10K
23:44 | 7:38/mi
15K· 9.32 mi
1:10:41
Rank: #12729 (-240)
10K → 15K
23:50 | 7:40/mi
20K· 12.43 mi
1:35:37
Rank: #13309 (-580)
15K → 20K
24:56 | 8:02/mi
Half· 13.11 mi
1:40:53
Rank: #13327 (-18)
20K → Half
5:16 | 7:43/mi
25K· 15.53 mi
2:01:13
Rank: #13924 (-597)
Half → 25K
20:20 | 8:23/mi
30K· 18.64 mi
2:28:01
Rank: #14199 (-275)
25K → 30K
26:48 | 8:38/mi
20M
2:39:53
Rank: #14268 (-69)
30K → 20M
11:52 | 8:44/mi
21M
2:49:38
Rank: #14485 (-217)
20M → 21M
9:45 | 9:45/mi
35K· 21.75 mi
2:55:59
Rank: #14519 (-34)
21M → 35K
6:21 | 8:29/mi
23M
3:07:07
Rank: #14556 (-37)
35K → 23M
11:08 | 8:54/mi
24M
3:15:33
Rank: #14525 (+31)
23M → 24M
8:26 | 8:26/mi
40K· 24.85 mi
3:22:42
Rank: #14421 (+104)
24M → 40K
7:09 | 8:22/mi
25.2M
3:26:01
Rank: #14425 (-4)
40K → 25.2M
3:19 | 9:37/mi
Finish· 26.22 mi
3:34:03
Rank: #14308 (+117)
25.2M → Finish
8:02 | 7:53/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:53
Pace7:42 /mi
2nd Half
Distance13.11 mi
Time1:53:10
Pace8:38 /mi
📊Positive Split: 12.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:5823:077:2623:07
7:26
-
10K
6.21 mi11:17:4246:517:3223:44
7:38
+0:12
15K
9.32 mi11:41:321:10:417:3523:50
7:40
+0:02
20K
12.43 mi12:06:281:35:377:4224:56
8:02
+0:22
Half
13.11 mi12:11:441:40:537:425:16
7:43
-0:19
25K
15.53 mi12:32:042:01:137:4820:20
8:23
+0:40
30K
18.64 mi12:58:522:28:017:5626:48
8:38
+0:15
20M
20.00 mi13:10:442:39:538:0011:52
8:44
+0:06
21M
21.00 mi13:20:292:49:388:059:45
9:45
+1:01
35K
21.75 mi13:26:502:55:598:066:21
8:29
-1:16
23M
23.00 mi13:37:583:07:078:0811:08
8:54
+0:25
24M
24.00 mi13:46:243:15:338:098:26
8:26
-0:28
40K
24.85 mi13:53:333:22:428:097:09
8:22
-0:04
25.2M
25.20 mi13:56:523:26:018:113:19
9:37
+1:15
Finish
26.22 mi14:04:543:34:038:108:02
7:53
-1:44

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

7:26 /mi

Average Pace

8:10 /mi

Slowest Pace

9:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:48:55

51% of race

Time at Steady Pace

1:09:04

32% of race

Time at Slower Pace

36:04

17% of race

Average Pace: 8:10 /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 mi10:53:5823:077:2623:07
7:26
#11727
10K
6.21 mi11:17:4246:517:3223:44
7:38
#12489
15K
9.32 mi11:41:321:10:417:3523:50
7:40
#12729
20K
12.43 mi12:06:281:35:377:4224:56
8:02
#13309
Half
13.11 mi12:11:441:40:537:425:16
7:43
#13327
25K
15.53 mi12:32:042:01:137:4820:20
8:23
#13924
30K
18.64 mi12:58:522:28:017:5626:48
8:38
#14199
20M
20.00 mi13:10:442:39:538:0011:52
8:44
#14268
21M
21.00 mi13:20:292:49:388:059:45
9:45
#14485
35K
21.75 mi13:26:502:55:598:066:21
8:29
#14519
23M
23.00 mi13:37:583:07:078:0811:08
8:54
#14556
24M
24.00 mi13:46:243:15:338:098:26
8:26
#14525
40K
24.85 mi13:53:333:22:428:097:09
8:22
#14421
25.2M
25.20 mi13:56:523:26:018:113:19
9:37
#14425
Finish
26.22 mi14:04:543:34:038:108:02
7:53
#14308
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi117272648264813235(Top 47%)3573(Top 29%)3573(Top 208%)
10K6.21 mi3.10 mi12489-7623065-4173065-41713386(Top 47%)3603(Top 29%)3603(Top 210%)
15K9.32 mi3.11 mi12729-2403225-1603225-16013235(Top 47%)3573(Top 29%)3573(Top 208%)
20K12.43 mi3.11 mi13309-5803611-3863611-38615126(Top 53%)4707(Top 38%)4707(Top 274%)
Half13.11 mi0.68 mi13327-183626-153626-1513658(Top 48%)3880(Top 32%)3880(Top 226%)
25K15.53 mi2.42 mi13924-5974001-3754001-37516489(Top 58%)5576(Top 46%)5576(Top 325%)
30K18.64 mi3.11 mi14199-2754222-2214222-22115532(Top 55%)5191(Top 42%)5191(Top 302%)
20M20.00 mi1.36 mi14268-694286-644286-6415268(Top 54%)5183(Top 42%)5183(Top 302%)
21M21.00 mi1.00 mi14485-2174429-1434429-14317260(Top 61%)6400(Top 52%)6400(Top 373%)
35K21.75 mi0.75 mi14519-344465-364465-3615403(Top 54%)5459(Top 45%)5459(Top 318%)
23M23.00 mi1.25 mi14556-374518-534518-5315641(Top 55%)5683(Top 46%)5683(Top 331%)
24M24.00 mi1.00 mi14525+314526-84526-814118(Top 50%)4884(Top 40%)4884(Top 284%)
40K24.85 mi0.85 mi14421+1044505+214505+2112580(Top 44%)4233(Top 35%)4233(Top 246%)
25.2M25.20 mi0.35 mi14425-44517-124517-1215206(Top 54%)5647(Top 46%)5647(Top 329%)
Finish26.22 mi1.02 mi14308+1174483+344483+3412091(Top 43%)3979(Top 33%)3979(Top 232%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 47%
×21stories
+97ft-345ft

Overall

13235

Females

3573

F40-44

3573

5K→10K

3.1 - 6.2 mi

Top 47%
×5stories
+79ft-138ft

Overall

13386

Females

3603

F40-44

3603

10K→15K

6.2 - 9.3 mi

Top 47%
×3stories
+67ft-78ft

Overall

13235

Females

3573

F40-44

3573

15K→20K

9.3 - 12.4 mi

Top 53%
×5stories
+106ft-86ft

Overall

15126

Females

4707

F40-44

4707

20K→Half

12.4 - 13.1 mi

Top 48%
×2stories
+19ft-37ft

Overall

13658

Females

3880

F40-44

3880

Half→25K

13.1 - 15.5 mi

Top 58%
×4stories
+66ft-88ft

Overall

16489

Females

5576

F40-44

5576

25K→30K

15.5 - 18.6 mi

Top 55%
×9stories
+181ft-148ft

Overall

15532

Females

5191

F40-44

5191

30K→20M

18.6 - 20.0 mi

Top 54%
×5stories
+64ft-50ft

Overall

15268

Females

5183

F40-44

5183

20M→21M

20.0 - 21.0 mi

Top 61%
×8stories
+106ft-24ft

Overall

17260

Females

6400

F40-44

6400

21M→35K

21.0 - 21.8 mi

Top 54%
×7stories
+17ft-86ft

Overall

15403

Females

5459

F40-44

5459

35K→23M

21.8 - 23.0 mi

Top 55%
×5stories
+23ft-63ft

Overall

15641

Females

5683

F40-44

5683

23M→24M

23.0 - 24.0 mi

Top 50%
×6stories
+12ft-82ft

Overall

14118

Females

4884

F40-44

4884

24M→40K

24.0 - 24.9 mi

Top 44%
×1story
+6ft-20ft

Overall

12580

Females

4233

F40-44

4233

40K→25.2M

24.9 - 25.2 mi

Top 54%
×1story
+13ft-16ft

Overall

15206

Females

5647

F40-44

5647

25.2M→Finish

25.2 - 26.2 mi

Top 43%
×2stories
+22ft-21ft

Overall

12091

Females

3979

F40-44

3979

Passing Analysis

Category:
Athletes Passed
1180
Passed By
3761
Net Change
-2581
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11727
5K → 10K62824-762#11727#12489
10K → 15K105345-240#12489#12729
15K → 20K74654-580#12729#13309
20K → Half3048-18#13309#13327
Half → 25K61658-597#13327#13924
25K → 30K179454-275#13924#14199
30K → 20M97166-69#14199#14268
20M → 21M59276-217#14268#14485
21M → 35K5589-34#14485#14519
35K → 23M82119-37#14519#14556
23M → 24M7948+31#14556#14525
24M → 40K13127+104#14525#14421
40K → 25.2M2832-4#14421#14425
25.2M → Finish13821+117#14425#14308
TOTALS11803761-2581
📊

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