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BOSTON MARATHON 2025

Erin Blaze

IL

Bib: 19511 F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 38%
Masters (Masters Women)
#0 / 6759
Top 24%
Division (F40-44)
#0 / 1718
Top 47%
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
8:12/mi
25:28
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:58/mi
50:12
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:55/mi
1:14:47
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:59/mi
1:39:34
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:53/mi
1:44:57
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:03/mi
2:04:28
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
8:18/mi
2:30:14
↑ 181↓ 1480.2%
138 ft elev
20M
8:20/mi
2:41:33
↑ 64↓ 500.2%
148 ft elev
21M
9:01/mi
2:50:34
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
8:08/mi
2:56:39
↑ 17↓ 861.7%
156 ft elev
23M
8:30/mi
3:07:18
↑ 23↓ 630.6%
116 ft elev
24M
8:21/mi
3:15:39
↓ 821.3%
34 ft elev
40K· 24.85 mi
9:03/mi
3:23:23
↓ 200.3%
20 ft elev
25.2M
10:15/mi
3:26:55
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
8:21/mi
3:35:26
↑ 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
1:44:578:00 /mi⚡ faster
2nd Half
1:50:298:26 /mi+5.3%
Positive split — 5.3% slower in the second half
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Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
25:288:123.11 mi25:28
8:12
-
10K
50:128:053.10 mi24:44
7:58
-0:14
15K
1:14:478:013.11 mi24:35
7:55
-0:03
20K
1:39:348:013.11 mi24:47
7:59
+0:04
Half(13.11 mi)
1:44:578:000.68 mi5:23
7:53
-0:06
25K
2:04:288:012.42 mi19:31
8:03
+0:10
30K
2:30:148:043.11 mi25:46
8:18
+0:15
20M
2:41:338:051.36 mi11:19
8:20
+0:02
21M
2:50:348:071.00 mi9:01
9:01
+0:41
35K
2:56:398:070.75 mi6:05
8:08
-0:53
23M
3:07:188:091.25 mi10:39
8:30
+0:22
24M
3:15:398:091.00 mi8:21
8:21
-0:09
40K
3:23:238:110.85 mi7:44
9:03
+0:42
25.2M
3:26:558:130.35 mi3:32
10:15
+1:12
Finish(26.22 mi)
3:35:268:131.02 mi8:31
8:21
-1:54
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

7:53 /mi

Average Pace

8:13 /mi

Slowest Pace

10:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

1:19:29

37% of race

Time at Steady Pace

1:55:40

54% of race

Time at Slower Pace

20:17

9% of race

Average Pace: 8:13 /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 mi18076638663861535247824782
10K3.10 mi17109+9675789+5975789+5971616652205220
15K3.11 mi16505+6045436+3535436+3531535247824782
20K3.11 mi16024+4815165+2715165+2711476645174517
Half(13.11 mi)0.68 mi15964+605130+355130+351507446574657
25K2.42 mi15650+3144971+1594971+1591428743634363
30K3.11 mi15212+4384781+1904781+1901347240974097
20M1.36 mi14965+2474676+1054676+1051270838183818
21M1.00 mi14829+1364625+514625+511363844334433
35K0.75 mi14732+974588+374588+371319042744274
23M1.25 mi14625+1074560+284560+281337444704470
24M1.00 mi14563+624546+144546+141358946124612
40K0.85 mi14615-524606-604606-601657863486348
25.2M0.35 mi14675-604655-494655-491809171667166
Finish(26.22 mi)1.02 mi14672+34684-294684-291531056435643

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21story building
+97ft-345ft

Overall

15352

Females

4782

F40-44

4782

5K→10K

3.1 - 6.2 mi

Top 57%
×5story building
+79ft-138ft

Overall

16166

Females

5220

F40-44

5220

10K→15K

6.2 - 9.3 mi

Top 54%
×3story building
+67ft-78ft

Overall

15352

Females

4782

F40-44

4782

15K→20K

9.3 - 12.4 mi

Top 52%
×5story building
+106ft-86ft

Overall

14766

Females

4517

F40-44

4517

20K→Half

12.4 - 13.1 mi

Top 53%
×2story building
+19ft-37ft

Overall

15074

Females

4657

F40-44

4657

Half→25K

13.1 - 15.5 mi

Top 50%
×4story building
+66ft-88ft

Overall

14287

Females

4363

F40-44

4363

25K→30K

15.5 - 18.6 mi

Top 47%
×9story building
+181ft-148ft

Overall

13472

Females

4097

F40-44

4097

30K→20M

18.6 - 20.0 mi

Top 45%
×5story building
+64ft-50ft

Overall

12708

Females

3818

F40-44

3818

20M→21M

20.0 - 21.0 mi

Top 48%
×8story building
+106ft-24ft

Overall

13638

Females

4433

F40-44

4433

21M→35K

21.0 - 21.8 mi

Top 46%
×7story building
+17ft-86ft

Overall

13190

Females

4274

F40-44

4274

35K→23M

21.8 - 23.0 mi

Top 47%
×5story building
+23ft-63ft

Overall

13374

Females

4470

F40-44

4470

23M→24M

23.0 - 24.0 mi

Top 48%
×6story building
+12ft-82ft

Overall

13589

Females

4612

F40-44

4612

24M→40K

24.0 - 24.9 mi

Top 58%
×1story
+6ft-20ft

Overall

16578

Females

6348

F40-44

6348

40K→25.2M

24.9 - 25.2 mi

Top 64%
×1story
+13ft-16ft

Overall

18091

Females

7166

F40-44

7166

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2story building
+22ft-21ft

Overall

15310

Females

5643

F40-44

5643

Passing Analysis

Category:
▲Net Change
+0
0 passed by0 passed
SegmentMovementRank
Start → 5K-#18076
5K → 10K
441011+967
#18076 → #17109
10K → 15K
16620+604
#17109 → #16505
15K → 20K
32513+481
#16505 → #16024
20K → Half
1070+60
#16024 → #15964
Half → 25K
31345+314
#15964 → #15650
25K → 30K
51489+438
#15650 → #15212
30K → 20M
21268+247
#15212 → #14965
20M → 21M
42178+136
#14965 → #14829
21M → 35K
16113+97
#14829 → #14732
35K → 23M
42149+107
#14732 → #14625
23M → 24M
46108+62
#14625 → #14563
24M → 40K
10553-52
#14563 → #14615
40K → 25.2M
8020-60
#14615 → #14675
25.2M → Finish
7174+3
#14675 → #14672
TOTALS
6074011+3404
#18076 → #14672

Passing Visualized

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