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BOSTON MARATHON 2025

Heidi Westfall

NY

Bib: 20942 F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 41%
Division (F40-44)
#0 / 1718
Race Day Weather
50°/40°F
broken clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
7:41/mi
23:53
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:52/mi
48:20
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:59/mi
1:13:08
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:23/mi
1:39:10
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
8:21/mi
1:44:52
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:37/mi
2:05:46
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
8:58/mi
2:33:37
↑ 181↓ 1480.2%
138 ft elev
20M
9:10/mi
2:46:04
↑ 64↓ 500.2%
148 ft elev
21M
9:49/mi
2:55:53
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
8:40/mi
3:02:22
↑ 17↓ 861.7%
156 ft elev
23M
9:45/mi
3:14:34
↑ 23↓ 630.6%
116 ft elev
24M
9:41/mi
3:24:15
↓ 821.3%
34 ft elev
40K· 24.85 mi
10:27/mi
3:33:11
↓ 200.3%
20 ft elev
25.2M
10:32/mi
3:36:49
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
9:47/mi
3:46:47
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:44:528:00 /mi⚡ faster
2nd Half
2:01:559:18 /mi+16.3%
Positive split — 16.3% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
23:537:413.11 mi23:53
7:41
-
10K
48:207:473.10 mi24:27
7:52
+0:11
15K
1:13:087:513.11 mi24:48
7:59
+0:07
20K
1:39:107:593.11 mi26:02
8:23
+0:24
Half(13.11 mi)
1:44:528:000.68 mi5:42
8:21
-0:02
25K
2:05:468:062.42 mi20:54
8:37
+0:16
30K
2:33:378:143.11 mi27:51
8:58
+0:21
20M
2:46:048:181.36 mi12:27
9:10
+0:12
21M
2:55:538:231.00 mi9:49
9:49
+0:39
35K
3:02:228:230.75 mi6:29
8:40
-1:09
23M
3:14:348:281.25 mi12:12
9:45
+1:05
24M
3:24:158:311.00 mi9:41
9:41
-0:04
40K
3:33:118:350.85 mi8:56
10:27
+0:46
25.2M
3:36:498:360.35 mi3:38
10:32
+0:05
Finish(26.22 mi)
3:46:478:391.02 mi9:58
9:47
-0:45
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

7:41 /mi

Average Pace

8:39 /mi

Slowest Pace

10:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

1:44:52

46% of race

Time at Steady Pace

1:07:41

30% of race

Time at Slower Pace

54:14

24% of race

Average Pace: 8:39 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi13892383838381592851105110
10K3.10 mi14584-6924289-4514289-4511546348204820
15K3.11 mi15054-4704589-3004589-3001592851105110
20K3.11 mi15769-7155026-4375026-4371744760296029
Half(13.11 mi)0.68 mi15917-1485101-755101-751834365206520
25K2.42 mi16301-3845343-2425343-2421793463926392
30K3.11 mi16461-1605504-1615504-1611749563026302
20M1.36 mi16532-715574-705574-701761164756475
21M1.00 mi16552-205610-365610-361756865676567
35K0.75 mi16523+295618-85618-81652160806080
23M1.25 mi16749-2265781-1635781-1631960378317831
24M1.00 mi16958-2095932-1515932-1512032682528252
40K0.85 mi17259-3016134-2026134-2022177690739073
25.2M0.35 mi17303-446169-356169-351915877137713
Finish(26.22 mi)1.02 mi17549-2466339-1706339-1702220892639263

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 56%
×21story building
+97ft-345ft

Overall

15928

Females

5110

F40-44

5110

5K→10K

3.1 - 6.2 mi

Top 54%
×5story building
+79ft-138ft

Overall

15463

Females

4820

F40-44

4820

10K→15K

6.2 - 9.3 mi

Top 56%
×3story building
+67ft-78ft

Overall

15928

Females

5110

F40-44

5110

15K→20K

9.3 - 12.4 mi

Top 61%
×5story building
+106ft-86ft

Overall

17447

Females

6029

F40-44

6029

20K→Half

12.4 - 13.1 mi

Top 65%
×2story building
+19ft-37ft

Overall

18343

Females

6520

F40-44

6520

Half→25K

13.1 - 15.5 mi

Top 63%
×4story building
+66ft-88ft

Overall

17934

Females

6392

F40-44

6392

25K→30K

15.5 - 18.6 mi

Top 62%
×9story building
+181ft-148ft

Overall

17495

Females

6302

F40-44

6302

30K→20M

18.6 - 20.0 mi

Top 62%
×5story building
+64ft-50ft

Overall

17611

Females

6475

F40-44

6475

20M→21M

20.0 - 21.0 mi

Top 62%
×8story building
+106ft-24ft

Overall

17568

Females

6567

F40-44

6567

21M→35K

21.0 - 21.8 mi

Top 58%
×7story building
+17ft-86ft

Overall

16521

Females

6080

F40-44

6080

35K→23M

21.8 - 23.0 mi

Top 69%
×5story building
+23ft-63ft

Overall

19603

Females

7831

F40-44

7831

23M→24M

23.0 - 24.0 mi

Top 72%
×6story building
+12ft-82ft

Overall

20326

Females

8252

F40-44

8252

24M→40K

24.0 - 24.9 mi

Top 77%
×1story
+6ft-20ft

Overall

21776

Females

9073

F40-44

9073

40K→25.2M

24.9 - 25.2 mi

Top 67%
×1story
+13ft-16ft

Overall

19158

Females

7713

F40-44

7713

25.2M→Finish

25.2 - 26.2 mi

Top 78%
×2story building
+22ft-21ft

Overall

22208

Females

9263

F40-44

9263

Passing Analysis

Category:
Passed
939
Passed By
4596
Net Change
-3657
SegmentPassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13892
5K → 10K102794-692#13892#14584
10K → 15K84554-470#14584#15054
15K → 20K63778-715#15054#15769
20K → Half10158-148#15769#15917
Half → 25K80464-384#15917#16301
25K → 30K182342-160#16301#16461
30K → 20M83154-71#16461#16532
20M → 21M110130-20#16532#16552
21M → 35K7647+29#16552#16523
35K → 23M58284-226#16523#16749
23M → 24M33242-209#16749#16958
24M → 40K16317-301#16958#17259
40K → 25.2M2468-44#17259#17303
25.2M → Finish18264-246#17303#17549
TOTALS9394596-3657

Passing Charts

Category:
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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