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BOSTON MARATHON 2025

Nancy Whitcher

Bib: 19733•F

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 45%
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:36
Rank: #15899
Start → 5K
24:36 | 7:55/mi
10K· 6.21 mi
49:12
Rank: #15866 (+33)
5K → 10K
24:36 | 7:55/mi
15K· 9.32 mi
1:13:58
Rank: #15806 (+60)
10K → 15K
24:46 | 7:58/mi
20K· 12.43 mi
1:38:36
Rank: #15407 (+399)
15K → 20K
24:38 | 7:56/mi
Half· 13.11 mi
1:43:58
Rank: #15360 (+47)
20K → Half
5:22 | 7:52/mi
25K· 15.53 mi
2:04:10
Rank: #15500 (-140)
Half → 25K
20:12 | 8:20/mi
30K· 18.64 mi
2:31:04
Rank: #15535 (-35)
25K → 30K
26:54 | 8:39/mi
20M
2:43:17
Rank: #15588 (-53)
30K → 20M
12:13 | 8:59/mi
21M
2:53:02
Rank: #15684 (-96)
20M → 21M
9:45 | 9:45/mi
35K· 21.75 mi
2:59:30
Rank: #15678 (+6)
21M → 35K
6:28 | 8:39/mi
23M
3:11:19
Rank: #15801 (-123)
35K → 23M
11:49 | 9:26/mi
24M
3:20:22
Rank: #15898 (-97)
23M → 24M
9:03 | 9:03/mi
40K· 24.85 mi
3:28:17
Rank: #15950 (-52)
24M → 40K
7:55 | 9:16/mi
25.2M
3:31:47
Rank: #15983 (-33)
40K → 25.2M
3:30 | 10:09/mi
Finish· 26.22 mi
3:40:51
Rank: #16080 (-97)
25.2M → Finish
9:04 | 8:54/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:58
Pace7:56 /mi
2nd Half
Distance13.11 mi
Time1:56:53
Pace8:55 /mi
📊Positive Split: 12.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:0524:367:5524:36
7:55
-
10K
6.21 mi11:40:4149:127:5524:36
7:55
0:00
15K
9.32 mi12:05:271:13:587:5624:46
7:58
+0:03
20K
12.43 mi12:30:051:38:367:5624:38
7:56
-0:02
Half
13.11 mi12:35:271:43:587:565:22
7:52
-0:04
25K
15.53 mi12:55:392:04:108:0020:12
8:20
+0:28
30K
18.64 mi13:22:332:31:048:0626:54
8:39
+0:19
20M
20.00 mi13:34:462:43:178:1012:13
8:59
+0:20
21M
21.00 mi13:44:312:53:028:149:45
9:45
+0:46
35K
21.75 mi13:50:592:59:308:156:28
8:39
-1:06
23M
23.00 mi14:02:483:11:198:1911:49
9:26
+0:47
24M
24.00 mi14:11:513:20:228:219:03
9:03
-0:23
40K
24.85 mi14:19:463:28:178:237:55
9:16
+0:13
25.2M
25.20 mi14:23:163:31:478:243:30
10:09
+0:53
Finish
26.22 mi14:32:203:40:518:269:04
8:54
-1:15

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

7:52 /mi

Average Pace

8:26 /mi

Slowest Pace

10:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:43:58

47% of race

Time at Steady Pace

1:14:51

34% of race

Time at Slower Pace

42:02

19% of race

Average Pace: 8:25 /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 mi11:16:0524:367:5524:36
7:55
#15899
10K
6.21 mi11:40:4149:127:5524:36
7:55
#15866
15K
9.32 mi12:05:271:13:587:5624:46
7:58
#15806
20K
12.43 mi12:30:051:38:367:5624:38
7:56
#15407
Half
13.11 mi12:35:271:43:587:565:22
7:52
#15360
25K
15.53 mi12:55:392:04:108:0020:12
8:20
#15500
30K
18.64 mi13:22:332:31:048:0626:54
8:39
#15535
20M
20.00 mi13:34:462:43:178:1012:13
8:59
#15588
21M
21.00 mi13:44:312:53:028:149:45
9:45
#15684
35K
21.75 mi13:50:592:59:308:156:28
8:39
#15678
23M
23.00 mi14:02:483:11:198:1911:49
9:26
#15801
24M
24.00 mi14:11:513:20:228:219:03
9:03
#15898
40K
24.85 mi14:19:463:28:178:237:55
9:16
#15950
25.2M
25.20 mi14:23:163:31:478:243:30
10:09
#15983
Finish
26.22 mi14:32:203:40:518:269:04
8:54
#16080
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi158995083508315839(Top 56%)5064(Top 41%)5064(Top 93%)
10K6.21 mi3.10 mi15866+335058+255058+2515819(Top 56%)5024(Top 41%)5024(Top 92%)
15K9.32 mi3.11 mi15806+605017+415017+4115839(Top 56%)5064(Top 41%)5064(Top 93%)
20K12.43 mi3.11 mi15407+3994810+2074810+20714381(Top 51%)4305(Top 35%)4305(Top 79%)
Half13.11 mi0.68 mi15360+474785+254785+2514892(Top 52%)4570(Top 37%)4570(Top 84%)
25K15.53 mi2.42 mi15500-1404888-1034888-10316131(Top 57%)5387(Top 44%)5387(Top 99%)
30K18.64 mi3.11 mi15535-354966-784966-7815769(Top 56%)5325(Top 44%)5325(Top 97%)
20M20.00 mi1.36 mi15588-535026-605026-6016744(Top 59%)5997(Top 49%)5997(Top 110%)
21M21.00 mi1.00 mi15684-965131-1055131-10517266(Top 61%)6406(Top 52%)6406(Top 117%)
35K21.75 mi0.75 mi15678+65142-115142-1116352(Top 58%)5972(Top 49%)5972(Top 109%)
23M23.00 mi1.25 mi15801-1235248-1065248-10618416(Top 65%)7190(Top 59%)7190(Top 131%)
24M24.00 mi1.00 mi15898-975319-715319-7117620(Top 62%)6825(Top 56%)6825(Top 125%)
40K24.85 mi0.85 mi15950-525376-575376-5717656(Top 62%)6943(Top 57%)6943(Top 127%)
25.2M25.20 mi0.35 mi15983-335411-355411-3517704(Top 62%)6956(Top 57%)6956(Top 127%)
Finish26.22 mi1.02 mi16080-975478-675478-6718527(Top 65%)7341(Top 60%)7341(Top 134%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 56%
×21stories
+97ft-345ft

Overall

15839

Females

5064

F18-39

5064

5K→10K

3.1 - 6.2 mi

Top 56%
×5stories
+79ft-138ft

Overall

15819

Females

5024

F18-39

5024

10K→15K

6.2 - 9.3 mi

Top 56%
×3stories
+67ft-78ft

Overall

15839

Females

5064

F18-39

5064

15K→20K

9.3 - 12.4 mi

Top 51%
×5stories
+106ft-86ft

Overall

14381

Females

4305

F18-39

4305

20K→Half

12.4 - 13.1 mi

Top 52%
×2stories
+19ft-37ft

Overall

14892

Females

4570

F18-39

4570

Half→25K

13.1 - 15.5 mi

Top 57%
×4stories
+66ft-88ft

Overall

16131

Females

5387

F18-39

5387

25K→30K

15.5 - 18.6 mi

Top 56%
×9stories
+181ft-148ft

Overall

15769

Females

5325

F18-39

5325

30K→20M

18.6 - 20.0 mi

Top 59%
×5stories
+64ft-50ft

Overall

16744

Females

5997

F18-39

5997

20M→21M

20.0 - 21.0 mi

Top 61%
×8stories
+106ft-24ft

Overall

17266

Females

6406

F18-39

6406

21M→35K

21.0 - 21.8 mi

Top 58%
×7stories
+17ft-86ft

Overall

16352

Females

5972

F18-39

5972

35K→23M

21.8 - 23.0 mi

Top 65%
×5stories
+23ft-63ft

Overall

18416

Females

7190

F18-39

7190

23M→24M

23.0 - 24.0 mi

Top 62%
×6stories
+12ft-82ft

Overall

17620

Females

6825

F18-39

6825

24M→40K

24.0 - 24.9 mi

Top 62%
×1story
+6ft-20ft

Overall

17656

Females

6943

F18-39

6943

40K→25.2M

24.9 - 25.2 mi

Top 62%
×1story
+13ft-16ft

Overall

17704

Females

6956

F18-39

6956

25.2M→Finish

25.2 - 26.2 mi

Top 65%
×2stories
+22ft-21ft

Overall

18527

Females

7341

F18-39

7341

Passing Analysis

Category:
Athletes Passed
1913
Passed By
2094
Net Change
-181
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15899
5K → 10K334301+33#15899#15866
10K → 15K241181+60#15866#15806
15K → 20K43435+399#15806#15407
20K → Half6215+47#15407#15360
Half → 25K131271-140#15360#15500
25K → 30K226261-35#15500#15535
30K → 20M104157-53#15535#15588
20M → 21M89185-96#15588#15684
21M → 35K5953+6#15684#15678
35K → 23M77200-123#15678#15801
23M → 24M41138-97#15801#15898
24M → 40K56108-52#15898#15950
40K → 25.2M2255-33#15950#15983
25.2M → Finish37134-97#15983#16080
TOTALS19132094-181
📊

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