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BOSTON MARATHON 2025

Brian Armstrong

Bib: 30819•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M50-54)
#0 / 1996
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
10:18/mi
32:01
↑ 97↓ 3451.5%
10K· 6.21 mi
10:30/mi
1:04:38
↑ 79↓ 1380.4%
15K· 9.32 mi
10:18/mi
1:36:39
↑ 67↓ 78
20K· 12.43 mi
10:37/mi
2:09:37
↑ 106↓ 860.1%
Half· 13.11 mi
9:17/mi
2:15:57
↑ 19↓ 370.5%
25K· 15.53 mi
10:05/mi
2:40:25
↑ 66↓ 880.2%
30K· 18.64 mi
10:33/mi
3:13:12
↑ 181↓ 1480.2%
20M
11:32/mi
3:28:53
↑ 64↓ 500.2%
21M
12:15/mi
3:41:08
↑ 106↓ 241.6%
35K· 21.75 mi
9:55/mi
3:48:33
↑ 17↓ 861.7%
23M
11:22/mi
4:02:47
↑ 23↓ 630.6%
24M
12:10/mi
4:14:57
↓ 821.3%
40K· 24.85 mi
12:47/mi
4:25:53
↓ 200.3%
25.2M
13:15/mi
4:30:27
↑ 13↓ 160.2%
Finish· 26.22 mi
10:36/mi
4:41:15
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:15:57
Pace10:22 /mi
2nd Half
Distance13.11 mi
Time2:25:18
Pace11:05 /mi
📊Positive Split: 6.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:5332:0110:1832:01
10:18
-
10K
6.21 mi12:25:301:04:3810:2432:37
10:30
+0:12
15K
9.32 mi12:57:311:36:3910:2232:01
10:18
-0:12
20K
12.43 mi13:30:292:09:3710:2632:58
10:37
+0:19
Half
13.11 mi13:36:492:15:5710:226:20
9:17
-1:20
25K
15.53 mi14:01:172:40:2510:2024:28
10:05
+0:48
30K
18.64 mi14:34:043:13:1210:2232:47
10:33
+0:28
20M
20.00 mi14:49:453:28:5310:2715:41
11:32
+0:59
21M
21.00 mi15:02:003:41:0810:3212:15
12:15
+0:43
35K
21.75 mi15:09:253:48:3310:317:25
9:55
-2:20
23M
23.00 mi15:23:394:02:4710:3314:14
11:22
+1:27
24M
24.00 mi15:35:494:14:5710:3712:10
12:10
+0:48
40K
24.85 mi15:46:454:25:5310:4210:56
12:47
+0:37
25.2M
25.20 mi15:51:194:30:2710:444:34
13:15
+0:28
Finish
26.22 mi16:02:074:41:1510:4410:48
10:36
-2:39

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

9:17 /mi

Average Pace

10:44 /mi

Slowest Pace

13:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

13:45

5% of race

Time at Steady Pace

3:17:40

70% of race

Time at Slower Pace

1:09:50

25% of race

Average Pace: 10:44 /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 mi11:52:5332:0110:1832:01
10:18
#26310
10K
6.21 mi12:25:301:04:3810:2432:37
10:30
#26290
15K
9.32 mi12:57:311:36:3910:2232:01
10:18
#26032
20K
12.43 mi13:30:292:09:3710:2632:58
10:37
#25854
Half
13.11 mi13:36:492:15:5710:226:20
9:17
#25719
25K
15.53 mi14:01:172:40:2510:2024:28
10:05
#25374
30K
18.64 mi14:34:043:13:1210:2232:47
10:33
#24996
20M
20.00 mi14:49:453:28:5310:2715:41
11:32
#24968
21M
21.00 mi15:02:003:41:0810:3212:15
12:15
#24924
35K
21.75 mi15:09:253:48:3310:317:25
9:55
#24826
23M
23.00 mi15:23:394:02:4710:3314:14
11:22
#24801
24M
24.00 mi15:35:494:14:5710:3712:10
12:10
#24868
40K
24.85 mi15:46:454:25:5310:4210:56
12:47
#24923
25.2M
25.20 mi15:51:194:30:2710:444:34
13:15
#24934
Finish
26.22 mi16:02:074:41:1510:4410:48
10:36
#24936
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi26310153141531425603(Top 90%)14976(Top 93%)14976(Top 750%)
10K6.21 mi3.10 mi26290+2015294+2015294+2026257(Top 92%)15251(Top 95%)15251(Top 764%)
15K9.32 mi3.11 mi26032+25815173+12115173+12125603(Top 90%)14976(Top 93%)14976(Top 750%)
20K12.43 mi3.11 mi25854+17815081+9215081+9225377(Top 89%)14843(Top 92%)14843(Top 744%)
Half13.11 mi0.68 mi25719+13515030+5115030+5122902(Top 81%)13761(Top 85%)13761(Top 689%)
25K15.53 mi2.42 mi25374+34514852+17814852+17823484(Top 83%)13953(Top 87%)13953(Top 699%)
30K18.64 mi3.11 mi24996+37814657+19514657+19523048(Top 81%)13642(Top 85%)13642(Top 683%)
20M20.00 mi1.36 mi24968+2814626+3114626+3124615(Top 87%)14277(Top 89%)14277(Top 715%)
21M21.00 mi1.00 mi24924+4414597+2914597+2924021(Top 85%)13920(Top 86%)13920(Top 697%)
35K21.75 mi0.75 mi24826+9814542+5514542+5521662(Top 76%)12757(Top 79%)12757(Top 639%)
23M23.00 mi1.25 mi24801+2514518+2414518+2424026(Top 85%)13855(Top 86%)13855(Top 694%)
24M24.00 mi1.00 mi24868-6714535-1714535-1725870(Top 91%)14730(Top 91%)14730(Top 738%)
40K24.85 mi0.85 mi24923-5514546-1114546-1126053(Top 92%)14818(Top 92%)14818(Top 742%)
25.2M25.20 mi0.35 mi24934-1114548-214548-225356(Top 89%)14422(Top 90%)14422(Top 723%)
Finish26.22 mi1.02 mi24936-214544+414544+424501(Top 86%)14032(Top 87%)14032(Top 703%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 90%
×21story building
+97ft-345ft

Overall

25603

Males

14976

M50-54

14976

5K→10K

3.1 - 6.2 mi

Top 92%
×5story building
+79ft-138ft

Overall

26257

Males

15251

M50-54

15251

10K→15K

6.2 - 9.3 mi

Top 90%
×3story building
+67ft-78ft

Overall

25603

Males

14976

M50-54

14976

15K→20K

9.3 - 12.4 mi

Top 89%
×5story building
+106ft-86ft

Overall

25377

Males

14843

M50-54

14843

20K→Half

12.4 - 13.1 mi

Top 81%
×2story building
+19ft-37ft

Overall

22902

Males

13761

M50-54

13761

Half→25K

13.1 - 15.5 mi

Top 83%
×4story building
+66ft-88ft

Overall

23484

Males

13953

M50-54

13953

25K→30K

15.5 - 18.6 mi

Top 81%
×9story building
+181ft-148ft

Overall

23048

Males

13642

M50-54

13642

30K→20M

18.6 - 20.0 mi

Top 87%
×5story building
+64ft-50ft

Overall

24615

Males

14277

M50-54

14277

20M→21M

20.0 - 21.0 mi

Top 85%
×8story building
+106ft-24ft

Overall

24021

Males

13920

M50-54

13920

21M→35K

21.0 - 21.8 mi

Top 76%
×7story building
+17ft-86ft

Overall

21662

Males

12757

M50-54

12757

35K→23M

21.8 - 23.0 mi

Top 85%
×5story building
+23ft-63ft

Overall

24026

Males

13855

M50-54

13855

23M→24M

23.0 - 24.0 mi

Top 91%
×6story building
+12ft-82ft

Overall

25870

Males

14730

M50-54

14730

24M→40K

24.0 - 24.9 mi

Top 92%
×1story
+6ft-20ft

Overall

26053

Males

14818

M50-54

14818

40K→25.2M

24.9 - 25.2 mi

Top 89%
×1story
+13ft-16ft

Overall

25356

Males

14422

M50-54

14422

25.2M→Finish

25.2 - 26.2 mi

Top 86%
×2story building
+22ft-21ft

Overall

24501

Males

14032

M50-54

14032

Passing Analysis

Category:
Athletes Passed
1936
Passed By
562
Net Change
+1374
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26310
5K → 10K178158+20#26310#26290
10K → 15K28426+258#26290#26032
15K → 20K22244+178#26032#25854
20K → Half1350+135#25854#25719
Half → 25K3494+345#25719#25374
25K → 30K3813+378#25374#24996
30K → 20M6840+28#24996#24968
20M → 21M7228+44#24968#24924
21M → 35K1046+98#24924#24826
35K → 23M5732+25#24826#24801
23M → 24M2087-67#24801#24868
24M → 40K2378-55#24868#24923
40K → 25.2M1223-11#24923#24934
25.2M → Finish3133-2#24934#24936
TOTALS1936562+1374
📊

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