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BOSTON MARATHON 2025

Brendan Shea

Bib: 27980•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 (M45-49)
#0 / 2386
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
10:51/mi
33:44
↑ 97↓ 3451.5%
10K· 6.21 mi
11:10/mi
1:08:26
↑ 79↓ 1380.4%
15K· 9.32 mi
10:39/mi
1:41:30
↑ 67↓ 78
20K· 12.43 mi
10:36/mi
2:14:27
↑ 106↓ 860.1%
Half· 13.11 mi
10:08/mi
2:21:22
↑ 19↓ 370.5%
25K· 15.53 mi
10:37/mi
2:47:07
↑ 66↓ 880.2%
30K· 18.64 mi
11:41/mi
3:23:25
↑ 181↓ 1480.2%
20M
12:14/mi
3:40:03
↑ 64↓ 500.2%
21M
13:15/mi
3:53:18
↑ 106↓ 241.6%
35K· 21.75 mi
11:00/mi
4:01:32
↑ 17↓ 861.7%
23M
12:25/mi
4:17:05
↑ 23↓ 630.6%
24M
12:12/mi
4:29:17
↓ 821.3%
40K· 24.85 mi
12:45/mi
4:40:11
↓ 200.3%
25.2M
14:50/mi
4:45:18
↑ 13↓ 160.2%
Finish· 26.22 mi
10:46/mi
4:56:16
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:21:22
Pace10:47 /mi
2nd Half
Distance13.11 mi
Time2:34:54
Pace11:49 /mi
📊Positive Split: 9.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:55:5633:4410:5133:44
10:51
-
10K
6.21 mi12:30:381:08:2611:0134:42
11:10
+0:19
15K
9.32 mi13:03:421:41:3010:5333:04
10:39
-0:31
20K
12.43 mi13:36:392:14:2710:4932:57
10:36
-0:03
Half
13.11 mi13:43:342:21:2210:476:55
10:08
-0:28
25K
15.53 mi14:09:192:47:0710:4525:45
10:37
+0:29
30K
18.64 mi14:45:373:23:2510:5536:18
11:41
+1:04
20M
20.00 mi15:02:153:40:0311:0016:38
12:14
+0:33
21M
21.00 mi15:15:303:53:1811:0713:15
13:15
+1:01
35K
21.75 mi15:23:444:01:3211:068:14
11:00
-2:15
23M
23.00 mi15:39:174:17:0511:1115:33
12:25
+1:25
24M
24.00 mi15:51:294:29:1711:1312:12
12:12
-0:13
40K
24.85 mi16:02:234:40:1111:1610:54
12:45
+0:33
25.2M
25.20 mi16:07:304:45:1811:195:07
14:50
+2:05
Finish
26.22 mi16:18:284:56:1611:1810:58
10:46
-4:04

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

10:08 /mi

Average Pace

11:18 /mi

Slowest Pace

14:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

6:55

2% of race

Time at Steady Pace

3:35:42

73% of race

Time at Slower Pace

1:13:39

25% of race

Average Pace: 11:18 /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 mi11:55:5633:4410:5133:44
10:51
#27382
10K
6.21 mi12:30:381:08:2611:0134:42
11:10
#27331
15K
9.32 mi13:03:421:41:3010:5333:04
10:39
#26934
20K
12.43 mi13:36:392:14:2710:4932:57
10:36
#26513
Half
13.11 mi13:43:342:21:2210:476:55
10:08
#26451
25K
15.53 mi14:09:192:47:0710:4525:45
10:37
#26128
30K
18.64 mi14:45:373:23:2510:5536:18
11:41
#25927
20M
20.00 mi15:02:153:40:0311:0016:38
12:14
#25916
21M
21.00 mi15:15:303:53:1811:0713:15
13:15
#25901
35K
21.75 mi15:23:444:01:3211:068:14
11:00
#25854
23M
23.00 mi15:39:174:17:0511:1115:33
12:25
#25858
24M
24.00 mi15:51:294:29:1711:1312:12
12:12
#25889
40K
24.85 mi16:02:234:40:1111:1610:54
12:45
#25909
25.2M
25.20 mi16:07:304:45:1811:195:07
14:50
#25941
Finish
26.22 mi16:18:284:56:1611:1810:58
10:46
#25929
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi27382157511575126170(Top 92%)15226(Top 95%)15226(Top 638%)
10K6.21 mi3.10 mi27331+5115711+4015711+4027272(Top 96%)15674(Top 97%)15674(Top 657%)
15K9.32 mi3.11 mi26934+39715551+16015551+16026170(Top 92%)15226(Top 95%)15226(Top 638%)
20K12.43 mi3.11 mi26513+42115371+18015371+18025370(Top 89%)14840(Top 92%)14840(Top 622%)
Half13.11 mi0.68 mi26451+6215347+2415347+2425123(Top 88%)14732(Top 91%)14732(Top 617%)
25K15.53 mi2.42 mi26128+32315203+14415203+14424581(Top 87%)14458(Top 90%)14458(Top 606%)
30K18.64 mi3.11 mi25927+20115074+12915074+12925117(Top 88%)14584(Top 91%)14584(Top 611%)
20M20.00 mi1.36 mi25916+1115063+1115063+1125593(Top 90%)14729(Top 91%)14729(Top 617%)
21M21.00 mi1.00 mi25901+1515039+2415039+2425374(Top 89%)14562(Top 90%)14562(Top 610%)
35K21.75 mi0.75 mi25854+4715010+2915010+2924214(Top 85%)13982(Top 87%)13982(Top 586%)
23M23.00 mi1.25 mi25858-415007+315007+325691(Top 90%)14675(Top 91%)14675(Top 615%)
24M24.00 mi1.00 mi25889-3115010-315010-325920(Top 91%)14759(Top 92%)14759(Top 619%)
40K24.85 mi0.85 mi25909-2015012-215012-226000(Top 92%)14788(Top 92%)14788(Top 620%)
25.2M25.20 mi0.35 mi25941-3215022-1015022-1027006(Top 95%)15270(Top 95%)15270(Top 640%)
Finish26.22 mi1.02 mi25929+1215010+1215010+1224880(Top 88%)14216(Top 88%)14216(Top 596%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 92%
×21story building
+97ft-345ft

Overall

26170

Males

15226

M45-49

15226

5K→10K

3.1 - 6.2 mi

Top 96%
×5story building
+79ft-138ft

Overall

27272

Males

15674

M45-49

15674

10K→15K

6.2 - 9.3 mi

Top 92%
×3story building
+67ft-78ft

Overall

26170

Males

15226

M45-49

15226

15K→20K

9.3 - 12.4 mi

Top 89%
×5story building
+106ft-86ft

Overall

25370

Males

14840

M45-49

14840

20K→Half

12.4 - 13.1 mi

Top 88%
×2story building
+19ft-37ft

Overall

25123

Males

14732

M45-49

14732

Half→25K

13.1 - 15.5 mi

Top 87%
×4story building
+66ft-88ft

Overall

24581

Males

14458

M45-49

14458

25K→30K

15.5 - 18.6 mi

Top 88%
×9story building
+181ft-148ft

Overall

25117

Males

14584

M45-49

14584

30K→20M

18.6 - 20.0 mi

Top 90%
×5story building
+64ft-50ft

Overall

25593

Males

14729

M45-49

14729

20M→21M

20.0 - 21.0 mi

Top 89%
×8story building
+106ft-24ft

Overall

25374

Males

14562

M45-49

14562

21M→35K

21.0 - 21.8 mi

Top 85%
×7story building
+17ft-86ft

Overall

24214

Males

13982

M45-49

13982

35K→23M

21.8 - 23.0 mi

Top 90%
×5story building
+23ft-63ft

Overall

25691

Males

14675

M45-49

14675

23M→24M

23.0 - 24.0 mi

Top 91%
×6story building
+12ft-82ft

Overall

25920

Males

14759

M45-49

14759

24M→40K

24.0 - 24.9 mi

Top 92%
×1story
+6ft-20ft

Overall

26000

Males

14788

M45-49

14788

40K→25.2M

24.9 - 25.2 mi

Top 95%
×1story
+13ft-16ft

Overall

27006

Males

15270

M45-49

15270

25.2M→Finish

25.2 - 26.2 mi

Top 88%
×2story building
+22ft-21ft

Overall

24880

Males

14216

M45-49

14216

Passing Analysis

Category:
Athletes Passed
1885
Passed By
432
Net Change
+1453
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#27382
5K → 10K161110+51#27382#27331
10K → 15K4025+397#27331#26934
15K → 20K4232+421#26934#26513
20K → Half631+62#26513#26451
Half → 25K3263+323#26451#26128
25K → 30K22827+201#26128#25927
30K → 20M5443+11#25927#25916
20M → 21M5439+15#25916#25901
21M → 35K547+47#25901#25854
35K → 23M3943-4#25854#25858
23M → 24M2253-31#25858#25889
24M → 40K2343-20#25889#25909
40K → 25.2M335-32#25909#25941
25.2M → Finish3321+12#25941#25929
TOTALS1885432+1453
📊

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