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BOSTON MARATHON 2025

Alison Armstrong

Bib: 7964•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 33%
Gender (Female)
#0 / 12228
Top 16%
Masters (Masters Women)
#0 / 6759
Top 6%
Division (F40-44)
#0 / 1718
Top 13%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:50
Rank: #8051
Start → 5K
21:50 | 7:02/mi
10K· 6.21 mi
43:44
Rank: #8162 (-111)
5K → 10K
21:54 | 7:03/mi
15K· 9.32 mi
1:06:19
Rank: #8622 (-460)
10K → 15K
22:35 | 7:16/mi
20K· 12.43 mi
1:29:46
Rank: #9195 (-573)
15K → 20K
23:27 | 7:33/mi
Half· 13.11 mi
1:34:54
Rank: #9343 (-148)
20K → Half
5:08 | 7:31/mi
25K· 15.53 mi
1:53:17
Rank: #9516 (-173)
Half → 25K
18:23 | 7:35/mi
30K· 18.64 mi
2:18:14
Rank: #9834 (-318)
25K → 30K
24:57 | 8:02/mi
20M
2:29:08
Rank: #9850 (-16)
30K → 20M
10:54 | 8:01/mi
21M
2:37:38
Rank: #9845 (+5)
20M → 21M
8:30 | 8:30/mi
35K· 21.75 mi
2:43:11
Rank: #9763 (+82)
21M → 35K
5:33 | 7:25/mi
23M
2:53:02
Rank: #9703 (+60)
35K → 23M
9:51 | 7:52/mi
24M
3:00:39
Rank: #9612 (+91)
23M → 24M
7:37 | 7:37/mi
40K· 24.85 mi
3:07:11
Rank: #9508 (+104)
24M → 40K
6:32 | 7:38/mi
25.2M
3:10:05
Rank: #9471 (+37)
40K → 25.2M
2:54 | 8:25/mi
Finish· 26.22 mi
3:17:33
Rank: #9385 (+86)
25.2M → Finish
7:28 | 7:20/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:34:54
Pace7:14 /mi
2nd Half
Distance13.11 mi
Time1:42:39
Pace7:50 /mi
📊Positive Split: 8.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:30:2121:507:0221:50
7:02
-
10K
6.21 mi10:52:1543:447:0221:54
7:03
+0:01
15K
9.32 mi11:14:501:06:197:0722:35
7:16
+0:13
20K
12.43 mi11:38:171:29:467:1323:27
7:33
+0:17
Half
13.11 mi11:43:251:34:547:145:08
7:31
-0:02
25K
15.53 mi12:01:481:53:177:1818:23
7:35
+0:04
30K
18.64 mi12:26:452:18:147:2524:57
8:02
+0:27
20M
20.00 mi12:37:392:29:087:2710:54
8:01
-0:01
21M
21.00 mi12:46:092:37:387:308:30
8:30
+0:29
35K
21.75 mi12:51:422:43:117:305:33
7:25
-1:05
23M
23.00 mi13:01:332:53:027:319:51
7:52
+0:27
24M
24.00 mi13:09:103:00:397:327:37
7:37
-0:15
40K
24.85 mi13:15:423:07:117:326:32
7:38
+0:01
25.2M
25.20 mi13:18:363:10:057:332:54
8:25
+0:47
Finish
26.22 mi13:26:043:17:337:327:28
7:20
-1:05

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

7:02 /mi

Average Pace

7:32 /mi

Slowest Pace

8:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:13:47

37% of race

Time at Steady Pace

1:06:40

34% of race

Time at Slower Pace

57:06

29% of race

Average Pace: 7:32 /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 mi10:30:2121:507:0221:50
7:02
#8051
10K
6.21 mi10:52:1543:447:0221:54
7:03
#8162
15K
9.32 mi11:14:501:06:197:0722:35
7:16
#8622
20K
12.43 mi11:38:171:29:467:1323:27
7:33
#9195
Half
13.11 mi11:43:251:34:547:145:08
7:31
#9343
25K
15.53 mi12:01:481:53:177:1818:23
7:35
#9516
30K
18.64 mi12:26:452:18:147:2524:57
8:02
#9834
20M
20.00 mi12:37:392:29:087:2710:54
8:01
#9850
21M
21.00 mi12:46:092:37:387:308:30
8:30
#9845
35K
21.75 mi12:51:422:43:117:305:33
7:25
#9763
23M
23.00 mi13:01:332:53:027:319:51
7:52
#9703
24M
24.00 mi13:09:103:00:397:327:37
7:37
#9612
40K
24.85 mi13:15:423:07:117:326:32
7:38
#9508
25.2M
25.20 mi13:18:363:10:057:332:54
8:25
#9471
Finish
26.22 mi13:26:043:17:337:327:28
7:20
#9385
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi8051100110019738(Top 34%)1770(Top 14%)1770(Top 103%)
10K6.21 mi3.10 mi8162-1111054-531054-538303(Top 29%)1111(Top 9%)1111(Top 65%)
15K9.32 mi3.11 mi8622-4601245-1911245-1919738(Top 34%)1770(Top 14%)1770(Top 103%)
20K12.43 mi3.11 mi9195-5731503-2581503-25811148(Top 39%)2549(Top 21%)2549(Top 148%)
Half13.11 mi0.68 mi9343-1481572-691572-6911915(Top 42%)2865(Top 23%)2865(Top 167%)
25K15.53 mi2.42 mi9516-1731690-1181690-11810614(Top 37%)2378(Top 19%)2378(Top 138%)
30K18.64 mi3.11 mi9834-3181884-1941884-19411612(Top 41%)3096(Top 25%)3096(Top 180%)
20M20.00 mi1.36 mi9850-161918-341918-3410585(Top 37%)2723(Top 22%)2723(Top 158%)
21M21.00 mi1.00 mi9845+51954-361954-3610480(Top 37%)2839(Top 23%)2839(Top 165%)
35K21.75 mi0.75 mi9763+821939+151939+158102(Top 29%)1728(Top 14%)1728(Top 101%)
23M23.00 mi1.25 mi9703+601953-141953-149068(Top 32%)2285(Top 19%)2285(Top 133%)
24M24.00 mi1.00 mi9612+911954-11954-18557(Top 30%)2119(Top 17%)2119(Top 123%)
40K24.85 mi0.85 mi9508+1041936+181936+187737(Top 27%)1863(Top 15%)1863(Top 108%)
25.2M25.20 mi0.35 mi9471+371939-31939-38311(Top 29%)2191(Top 18%)2191(Top 128%)
Finish26.22 mi1.02 mi9385+861942-31942-37991(Top 28%)2066(Top 17%)2066(Top 120%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 34%
×21stories
+97ft-345ft

Overall

9738

Females

1770

F40-44

1770

5K→10K

3.1 - 6.2 mi

Top 29%
×5stories
+79ft-138ft

Overall

8303

Females

1111

F40-44

1111

10K→15K

6.2 - 9.3 mi

Top 34%
×3stories
+67ft-78ft

Overall

9738

Females

1770

F40-44

1770

15K→20K

9.3 - 12.4 mi

Top 39%
×5stories
+106ft-86ft

Overall

11148

Females

2549

F40-44

2549

20K→Half

12.4 - 13.1 mi

Top 42%
×2stories
+19ft-37ft

Overall

11915

Females

2865

F40-44

2865

Half→25K

13.1 - 15.5 mi

Top 37%
×4stories
+66ft-88ft

Overall

10614

Females

2378

F40-44

2378

25K→30K

15.5 - 18.6 mi

Top 41%
×9stories
+181ft-148ft

Overall

11612

Females

3096

F40-44

3096

30K→20M

18.6 - 20.0 mi

Top 37%
×5stories
+64ft-50ft

Overall

10585

Females

2723

F40-44

2723

20M→21M

20.0 - 21.0 mi

Top 37%
×8stories
+106ft-24ft

Overall

10480

Females

2839

F40-44

2839

21M→35K

21.0 - 21.8 mi

Top 29%
×7stories
+17ft-86ft

Overall

8102

Females

1728

F40-44

1728

35K→23M

21.8 - 23.0 mi

Top 32%
×5stories
+23ft-63ft

Overall

9068

Females

2285

F40-44

2285

23M→24M

23.0 - 24.0 mi

Top 30%
×6stories
+12ft-82ft

Overall

8557

Females

2119

F40-44

2119

24M→40K

24.0 - 24.9 mi

Top 27%
×1story
+6ft-20ft

Overall

7737

Females

1863

F40-44

1863

40K→25.2M

24.9 - 25.2 mi

Top 29%
×1story
+13ft-16ft

Overall

8311

Females

2191

F40-44

2191

25.2M→Finish

25.2 - 26.2 mi

Top 28%
×2stories
+22ft-21ft

Overall

7991

Females

2066

F40-44

2066

Passing Analysis

Category:
Athletes Passed
1404
Passed By
2737
Net Change
-1334
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8051
5K → 10K169280-111#8051#8162
10K → 15K45505-460#8162#8622
15K → 20K57630-573#8622#9195
20K → Half4152-148#9195#9343
Half → 25K110283-173#9343#9516
25K → 30K143461-318#9516#9834
30K → 20M104119-16#9834#9850
20M → 21M106101+5#9850#9845
21M → 35K10321+82#9845#9763
35K → 23M13272+60#9763#9703
23M → 24M13544+91#9703#9612
24M → 40K12622+104#9612#9508
40K → 25.2M4912+37#9508#9471
25.2M → Finish12135+86#9471#9385
TOTALS14042737-1334
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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