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BOSTON MARATHON 2025

Rebecca Armbruster

Bib: 31683•F

PA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F50-54)
#0 / 1303
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
29:03
Rank: #23744
Start → 5K
9:21/mi
29:03 split
10K· 6.21 mi
56:37
Rank: #22860 (+884)
5K → 10K
8:52/mi
27:34 split
15K· 9.32 mi
1:23:56
Rank: #22301 (+559)
10K → 15K
8:48/mi
27:19 split
20K· 12.43 mi
1:52:15
Rank: #22073 (+228)
15K → 20K
9:07/mi
28:19 split
Half· 13.11 mi
1:58:26
Rank: #22077 (-4)
20K → Half
9:04/mi
6:11 split
25K· 15.53 mi
2:21:04
Rank: #21934 (+143)
Half → 25K
9:20/mi
22:38 split
30K· 18.64 mi
2:53:59
Rank: #22281 (-347)
25K → 30K
10:36/mi
32:55 split
20M
3:08:02
Rank: #22253 (+28)
30K → 20M
10:20/mi
14:03 split
21M
3:21:08
Rank: #22494 (-241)
20M → 21M
13:06/mi
13:06 split
35K· 21.75 mi
3:29:20
Rank: #22562 (-68)
21M → 35K
10:58/mi
8:12 split
23M
3:44:36
Rank: #22803 (-241)
35K → 23M
12:12/mi
15:16 split
24M
3:56:30
Rank: #22963 (-160)
23M → 24M
11:54/mi
11:54 split
40K· 24.85 mi
4:06:06
Rank: #22993 (-30)
24M → 40K
11:14/mi
9:36 split
25.2M
4:10:38
Rank: #23055 (-62)
40K → 25.2M
13:09/mi
4:32 split
Finish· 26.22 mi
4:20:59
Rank: #23061 (-6)
25.2M → Finish
10:09/mi
10:21 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:58:26
Pace9:02 /mi
2nd Half
Distance13.11 mi
Time2:22:33
Pace10:52 /mi
📊Positive Split: 20.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:5729:039:2129:03
9:21
-
10K
6.21 mi12:18:3156:379:0727:34
8:52
-0:29
15K
9.32 mi12:45:501:23:569:0027:19
8:48
-0:04
20K
12.43 mi13:14:091:52:159:0228:19
9:07
+0:19
Half
13.11 mi13:20:201:58:269:026:11
9:04
-0:03
25K
15.53 mi13:42:582:21:049:0522:38
9:20
+0:16
30K
18.64 mi14:15:532:53:599:2032:55
10:36
+1:16
20M
20.00 mi14:29:563:08:029:2414:03
10:20
-0:16
21M
21.00 mi14:43:023:21:089:3513:06
13:06
+2:46
35K
21.75 mi14:51:143:29:209:388:12
10:58
-2:08
23M
23.00 mi15:06:303:44:369:4615:16
12:12
+1:14
24M
24.00 mi15:18:243:56:309:5111:54
11:54
-0:18
40K
24.85 mi15:28:004:06:069:549:36
11:14
-0:40
25.2M
25.20 mi15:32:324:10:389:574:32
13:09
+1:55
Finish
26.22 mi15:42:534:20:599:5810:21
10:09
-3:00

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

8:48 /mi

Average Pace

9:58 /mi

Slowest Pace

13:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:21:04

54% of race

Time at Steady Pace

1:05:31

25% of race

Time at Slower Pace

54:24

21% of race

Average Pace: 9:57 /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 mi11:50:5729:039:2129:03
9:21
#23744
10K
6.21 mi12:18:3156:379:0727:34
8:52
#22860
15K
9.32 mi12:45:501:23:569:0027:19
8:48
#22301
20K
12.43 mi13:14:091:52:159:0228:19
9:07
#22073
Half
13.11 mi13:20:201:58:269:026:11
9:04
#22077
25K
15.53 mi13:42:582:21:049:0522:38
9:20
#21934
30K
18.64 mi14:15:532:53:599:2032:55
10:36
#22281
20M
20.00 mi14:29:563:08:029:2414:03
10:20
#22253
21M
21.00 mi14:43:023:21:089:3513:06
13:06
#22494
35K
21.75 mi14:51:143:29:209:388:12
10:58
#22562
23M
23.00 mi15:06:303:44:369:4615:16
12:12
#22803
24M
24.00 mi15:18:243:56:309:5111:54
11:54
#22963
40K
24.85 mi15:28:004:06:069:549:36
11:14
#22993
25.2M
25.20 mi15:32:324:10:389:574:32
13:09
#23055
Finish
26.22 mi15:42:534:20:599:5810:21
10:09
#23061
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi237449555955521002(Top 74%)8006(Top 65%)8006(Top 614%)
10K6.21 mi3.10 mi22860+8849076+4799076+47921777(Top 77%)8467(Top 69%)8467(Top 650%)
15K9.32 mi3.11 mi22301+5598756+3208756+32021002(Top 74%)8006(Top 65%)8006(Top 614%)
20K12.43 mi3.11 mi22073+2288637+1198637+11921528(Top 76%)8335(Top 68%)8335(Top 640%)
Half13.11 mi0.68 mi22077-48643-68643-622133(Top 78%)8690(Top 71%)8690(Top 667%)
25K15.53 mi2.42 mi21934+1438567+768567+7621322(Top 75%)8270(Top 68%)8270(Top 635%)
30K18.64 mi3.11 mi22281-3478785-2188785-21823159(Top 82%)9416(Top 77%)9416(Top 723%)
20M20.00 mi1.36 mi22253+288790-58790-521990(Top 77%)8887(Top 73%)8887(Top 682%)
21M21.00 mi1.00 mi22494-2418944-1548944-15425181(Top 89%)10652(Top 87%)10652(Top 817%)
35K21.75 mi0.75 mi22562-688995-518995-5124123(Top 85%)10126(Top 83%)10126(Top 777%)
23M23.00 mi1.25 mi22803-2419155-1609155-16025389(Top 89%)10798(Top 88%)10798(Top 829%)
24M24.00 mi1.00 mi22963-1609269-1149269-11425549(Top 90%)10900(Top 89%)10900(Top 837%)
40K24.85 mi0.85 mi22993-309304-359304-3523635(Top 83%)10002(Top 82%)10002(Top 768%)
25.2M25.20 mi0.35 mi23055-629338-349338-3425251(Top 89%)10816(Top 88%)10816(Top 830%)
Finish26.22 mi1.02 mi23061-69354-169354-1623418(Top 82%)9885(Top 81%)9885(Top 759%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 74%
×21story building
+97ft-345ft

Overall

21002

Females

8006

F50-54

8006

5K→10K

3.1 - 6.2 mi

Top 77%
×5story building
+79ft-138ft

Overall

21777

Females

8467

F50-54

8467

10K→15K

6.2 - 9.3 mi

Top 74%
×3story building
+67ft-78ft

Overall

21002

Females

8006

F50-54

8006

15K→20K

9.3 - 12.4 mi

Top 76%
×5story building
+106ft-86ft

Overall

21528

Females

8335

F50-54

8335

20K→Half

12.4 - 13.1 mi

Top 78%
×2story building
+19ft-37ft

Overall

22133

Females

8690

F50-54

8690

Half→25K

13.1 - 15.5 mi

Top 75%
×4story building
+66ft-88ft

Overall

21322

Females

8270

F50-54

8270

25K→30K

15.5 - 18.6 mi

Top 82%
×9story building
+181ft-148ft

Overall

23159

Females

9416

F50-54

9416

30K→20M

18.6 - 20.0 mi

Top 77%
×5story building
+64ft-50ft

Overall

21990

Females

8887

F50-54

8887

20M→21M

20.0 - 21.0 mi

Top 89%
×8story building
+106ft-24ft

Overall

25181

Females

10652

F50-54

10652

21M→35K

21.0 - 21.8 mi

Top 85%
×7story building
+17ft-86ft

Overall

24123

Females

10126

F50-54

10126

35K→23M

21.8 - 23.0 mi

Top 89%
×5story building
+23ft-63ft

Overall

25389

Females

10798

F50-54

10798

23M→24M

23.0 - 24.0 mi

Top 90%
×6story building
+12ft-82ft

Overall

25549

Females

10900

F50-54

10900

24M→40K

24.0 - 24.9 mi

Top 83%
×1story
+6ft-20ft

Overall

23635

Females

10002

F50-54

10002

40K→25.2M

24.9 - 25.2 mi

Top 89%
×1story
+13ft-16ft

Overall

25251

Females

10816

F50-54

10816

25.2M→Finish

25.2 - 26.2 mi

Top 82%
×2story building
+22ft-21ft

Overall

23418

Females

9885

F50-54

9885

Passing Analysis

Category:
Athletes Passed
2377
Passed By
1694
Net Change
+683
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23744
5K → 10K90824+884#23744#22860
10K → 15K57718+559#22860#22301
15K → 20K29567+228#22301#22073
20K → Half2428-4#22073#22077
Half → 25K21471+143#22077#21934
25K → 30K97444-347#21934#22281
30K → 20M8557+28#22281#22253
20M → 21M25266-241#22253#22494
21M → 35K2997-68#22494#22562
35K → 23M26267-241#22562#22803
23M → 24M22182-160#22803#22963
24M → 40K3969-30#22963#22993
40K → 25.2M466-62#22993#23055
25.2M → Finish3238-6#23055#23061
TOTALS23771694+683
📊

Passing Visuals

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