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BOSTON MARATHON 2025

Nancy Elwess

Bib: 16963•F

IN

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F70-74)
#0 / 71
Top 27%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
28:47
Rank: #23449
Start → 5K
28:47 | 9:16/mi
10K· 6.21 mi
58:06
Rank: #23735 (-286)
5K → 10K
29:19 | 9:26/mi
15K· 9.32 mi
1:27:33
Rank: #23733 (+2)
10K → 15K
29:27 | 9:29/mi
20K· 12.43 mi
1:57:44
Rank: #23672 (+61)
15K → 20K
30:11 | 9:43/mi
Half· 13.11 mi
2:04:21
Rank: #23703 (-31)
20K → Half
6:37 | 9:42/mi
25K· 15.53 mi
2:29:24
Rank: #23738 (-35)
Half → 25K
25:03 | 10:20/mi
30K· 18.64 mi
3:03:12
Rank: #23755 (-17)
25K → 30K
33:48 | 10:53/mi
20M
3:18:28
Rank: #23797 (-42)
30K → 20M
15:16 | 11:14/mi
21M
3:31:13
Rank: #23884 (-87)
20M → 21M
12:45 | 12:45/mi
35K· 21.75 mi
3:39:28
Rank: #23899 (-15)
21M → 35K
8:15 | 11:02/mi
23M
3:53:39
Rank: #23893 (+6)
35K → 23M
14:11 | 11:20/mi
24M
4:04:46
Rank: #23910 (-17)
23M → 24M
11:07 | 11:07/mi
40K· 24.85 mi
4:14:38
Rank: #23943 (-33)
24M → 40K
9:52 | 11:32/mi
25.2M
4:19:21
Rank: #23999 (-56)
40K → 25.2M
4:43 | 13:41/mi
Finish· 26.22 mi
4:31:28
Rank: #24147 (-148)
25.2M → Finish
12:07 | 11:53/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:04:21
Pace9:29 /mi
2nd Half
Distance13.11 mi
Time2:27:07
Pace11:13 /mi
📊Positive Split: 18.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:03:2028:479:1628:47
9:16
-
10K
6.21 mi11:32:3958:069:2129:19
9:26
+0:10
15K
9.32 mi12:02:061:27:339:2429:27
9:29
+0:03
20K
12.43 mi12:32:171:57:449:2830:11
9:43
+0:14
Half
13.11 mi12:38:542:04:219:296:37
9:42
-0:01
25K
15.53 mi13:03:572:29:249:3725:03
10:20
+0:38
30K
18.64 mi13:37:453:03:129:5033:48
10:53
+0:33
20M
20.00 mi13:53:013:18:289:5515:16
11:14
+0:21
21M
21.00 mi14:05:463:31:1310:0312:45
12:45
+1:31
35K
21.75 mi14:14:013:39:2810:058:15
11:02
-1:43
23M
23.00 mi14:28:123:53:3910:1014:11
11:20
+0:18
24M
24.00 mi14:39:194:04:4610:1211:07
11:07
-0:13
40K
24.85 mi14:49:114:14:3810:159:52
11:32
+0:25
25.2M
25.20 mi14:53:544:19:2110:184:43
13:41
+2:09
Finish
26.22 mi15:06:014:31:2810:2212:07
11:53
-1:48

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

9:16 /mi

Average Pace

10:22 /mi

Slowest Pace

13:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:29:24

55% of race

Time at Steady Pace

1:32:29

34% of race

Time at Slower Pace

29:35

11% of race

Average Pace: 10:21 /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 mi11:03:2028:479:1628:47
9:16
#23449
10K
6.21 mi11:32:3958:069:2129:19
9:26
#23735
15K
9.32 mi12:02:061:27:339:2429:27
9:29
#23733
20K
12.43 mi12:32:171:57:449:2830:11
9:43
#23672
Half
13.11 mi12:38:542:04:219:296:37
9:42
#23703
25K
15.53 mi13:03:572:29:249:3725:03
10:20
#23738
30K
18.64 mi13:37:453:03:129:5033:48
10:53
#23755
20M
20.00 mi13:53:013:18:289:5515:16
11:14
#23797
21M
21.00 mi14:05:463:31:1310:0312:45
12:45
#23884
35K
21.75 mi14:14:013:39:2810:058:15
11:02
#23899
23M
23.00 mi14:28:123:53:3910:1014:11
11:20
#23893
24M
24.00 mi14:39:194:04:4610:1211:07
11:07
#23910
40K
24.85 mi14:49:114:14:3810:159:52
11:32
#23943
25.2M
25.20 mi14:53:544:19:2110:184:43
13:41
#23999
Finish
26.22 mi15:06:014:31:2810:2212:07
11:53
#24147
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF70-74Seg. OverallSeg. FemalesSeg. F70-74
5K3.11 mi3.11 mi234499414941423688(Top 83%)9483(Top 78%)9483(Top 13356%)
10K6.21 mi3.10 mi23735-2869547-1339547-13323949(Top 84%)9654(Top 79%)9654(Top 13597%)
15K9.32 mi3.11 mi23733+29535+129535+1223688(Top 83%)9483(Top 78%)9483(Top 13356%)
20K12.43 mi3.11 mi23672+619501+349501+3423537(Top 83%)9446(Top 77%)9446(Top 13304%)
Half13.11 mi0.68 mi23703-319523-229523-2224131(Top 85%)9782(Top 80%)9782(Top 13777%)
25K15.53 mi2.42 mi23738-359550-279550-2724024(Top 85%)9753(Top 80%)9753(Top 13737%)
30K18.64 mi3.11 mi23755-179604-549604-5423771(Top 84%)9741(Top 80%)9741(Top 13720%)
20M20.00 mi1.36 mi23797-429640-369640-3624076(Top 85%)9994(Top 82%)9994(Top 14076%)
21M21.00 mi1.00 mi23884-879703-639703-6324740(Top 87%)10431(Top 85%)10431(Top 14692%)
35K21.75 mi0.75 mi23899-159724-219724-2124272(Top 85%)10201(Top 83%)10201(Top 14368%)
23M23.00 mi1.25 mi23893+69749-259749-2523954(Top 84%)10079(Top 82%)10079(Top 14196%)
24M24.00 mi1.00 mi23910-179760-119760-1124235(Top 85%)10238(Top 84%)10238(Top 14420%)
40K24.85 mi0.85 mi23943-339790-309790-3024217(Top 85%)10277(Top 84%)10277(Top 14475%)
25.2M25.20 mi0.35 mi23999-569827-379827-3725926(Top 91%)11138(Top 91%)11138(Top 15687%)
Finish26.22 mi1.02 mi24147-1489913-869913-8626679(Top 94%)11462(Top 94%)11462(Top 16144%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 83%
×21stories
+97ft-345ft

Overall

23688

Females

9483

F70-74

9483

5K→10K

3.1 - 6.2 mi

Top 84%
×5stories
+79ft-138ft

Overall

23949

Females

9654

F70-74

9654

10K→15K

6.2 - 9.3 mi

Top 83%
×3stories
+67ft-78ft

Overall

23688

Females

9483

F70-74

9483

15K→20K

9.3 - 12.4 mi

Top 83%
×5stories
+106ft-86ft

Overall

23537

Females

9446

F70-74

9446

20K→Half

12.4 - 13.1 mi

Top 85%
×2stories
+19ft-37ft

Overall

24131

Females

9782

F70-74

9782

Half→25K

13.1 - 15.5 mi

Top 85%
×4stories
+66ft-88ft

Overall

24024

Females

9753

F70-74

9753

25K→30K

15.5 - 18.6 mi

Top 84%
×9stories
+181ft-148ft

Overall

23771

Females

9741

F70-74

9741

30K→20M

18.6 - 20.0 mi

Top 85%
×5stories
+64ft-50ft

Overall

24076

Females

9994

F70-74

9994

20M→21M

20.0 - 21.0 mi

Top 87%
×8stories
+106ft-24ft

Overall

24740

Females

10431

F70-74

10431

21M→35K

21.0 - 21.8 mi

Top 85%
×7stories
+17ft-86ft

Overall

24272

Females

10201

F70-74

10201

35K→23M

21.8 - 23.0 mi

Top 84%
×5stories
+23ft-63ft

Overall

23954

Females

10079

F70-74

10079

23M→24M

23.0 - 24.0 mi

Top 85%
×6stories
+12ft-82ft

Overall

24235

Females

10238

F70-74

10238

24M→40K

24.0 - 24.9 mi

Top 85%
×1story
+6ft-20ft

Overall

24217

Females

10277

F70-74

10277

40K→25.2M

24.9 - 25.2 mi

Top 91%
×1story
+13ft-16ft

Overall

25926

Females

11138

F70-74

11138

25.2M→Finish

25.2 - 26.2 mi

Top 94%
×2stories
+22ft-21ft

Overall

26679

Females

11462

F70-74

11462

Passing Analysis

Category:
Athletes Passed
1014
Passed By
1712
Net Change
-698
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23449
5K → 10K128414-286#23449#23735
10K → 15K162160+2#23735#23733
15K → 20K167106+61#23733#23672
20K → Half1546-31#23672#23703
Half → 25K106141-35#23703#23738
25K → 30K152169-17#23738#23755
30K → 20M59101-42#23755#23797
20M → 21M42129-87#23797#23884
21M → 35K4358-15#23884#23899
35K → 23M6458+6#23899#23893
23M → 24M3552-17#23893#23910
24M → 40K3063-33#23910#23943
40K → 25.2M359-56#23943#23999
25.2M → Finish8156-148#23999#24147
TOTALS10141712-698
📊

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