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BOSTON MARATHON 2025

Brian Smith

Bib: 18363•M

IN

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
12:00/mi
37:17
↑ 97↓ 3451.5%
10K· 6.21 mi
11:27/mi
1:12:50
↑ 79↓ 1380.4%
15K· 9.32 mi
10:57/mi
1:46:50
↑ 67↓ 78
20K· 12.43 mi
11:14/mi
2:21:45
↑ 106↓ 860.1%
Half· 13.11 mi
10:26/mi
2:28:52
↑ 19↓ 370.5%
25K· 15.53 mi
11:09/mi
2:55:54
↑ 66↓ 880.2%
30K· 18.64 mi
11:18/mi
3:31:01
↑ 181↓ 1480.2%
20M
11:22/mi
3:46:28
↑ 64↓ 500.2%
21M
11:02/mi
3:57:30
↑ 106↓ 241.6%
35K· 21.75 mi
11:28/mi
4:06:05
↑ 17↓ 861.7%
23M
11:03/mi
4:19:55
↑ 23↓ 630.6%
24M
10:37/mi
4:30:32
↓ 821.3%
40K· 24.85 mi
11:02/mi
4:39:58
↓ 200.3%
25.2M
9:52/mi
4:43:22
↑ 13↓ 160.2%
Finish· 26.22 mi
9:40/mi
4:53:13
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time2:28:52
Pace11:21 /mi
2nd Half✓ Faster
Distance13.11 mi
Time2:24:21
Pace11:01 /mi
📊Negative Split: 3.0% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:28:1137:1712:0037:17
12:00
-
10K
6.21 mi12:03:441:12:5011:4335:33
11:27
-0:33
15K
9.32 mi12:37:441:46:5011:2834:00
10:57
-0:30
20K
12.43 mi13:12:392:21:4511:2434:55
11:14
+0:17
Half
13.11 mi13:19:462:28:5211:217:07
10:26
-0:48
25K
15.53 mi13:46:482:55:5411:1927:02
11:09
+0:43
30K
18.64 mi14:21:553:31:0111:1935:07
11:18
+0:09
20M
20.00 mi14:37:223:46:2811:1915:27
11:22
+0:04
21M
21.00 mi14:48:243:57:3011:1911:02
11:02
-0:20
35K
21.75 mi14:56:594:06:0511:198:35
11:28
+0:26
23M
23.00 mi15:10:494:19:5511:1813:50
11:03
-0:25
24M
24.00 mi15:21:264:30:3211:1610:37
10:37
-0:26
40K
24.85 mi15:30:524:39:5811:169:26
11:02
+0:25
25.2M
25.20 mi15:34:164:43:2211:153:24
9:52
-1:10
Finish
26.22 mi15:44:074:53:1311:119:51
9:40
-0:12

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

9:40 /mi

Average Pace

11:11 /mi

Slowest Pace

12:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

30:59

11% of race

Time at Steady Pace

2:45:22

56% of race

Time at Slower Pace

1:36:52

33% of race

Average Pace: 11:11 /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 mi11:28:1137:1712:0037:17
12:00
#28233
10K
6.21 mi12:03:441:12:5011:4335:33
11:27
#27966
15K
9.32 mi12:37:441:46:5011:2834:00
10:57
#27590
20K
12.43 mi13:12:392:21:4511:2434:55
11:14
#27281
Half
13.11 mi13:19:462:28:5211:217:07
10:26
#27206
25K
15.53 mi13:46:482:55:5411:1927:02
11:09
#26939
30K
18.64 mi14:21:553:31:0111:1935:07
11:18
#26567
20M
20.00 mi14:37:223:46:2811:1915:27
11:22
#26420
21M
21.00 mi14:48:243:57:3011:1911:02
11:02
#26215
35K
21.75 mi14:56:594:06:0511:198:35
11:28
#26181
23M
23.00 mi15:10:494:19:5511:1813:50
11:03
#26051
24M
24.00 mi15:21:264:30:3211:1610:37
10:37
#25971
40K
24.85 mi15:30:524:39:5811:169:26
11:02
#25895
25.2M
25.20 mi15:34:164:43:2211:153:24
9:52
#25821
Finish
26.22 mi15:44:074:53:1311:119:51
9:40
#25741
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi28233160501605026608(Top 94%)15406(Top 96%)15406(Top 772%)
10K6.21 mi3.10 mi27966+26715954+9615954+9627541(Top 97%)15777(Top 98%)15777(Top 790%)
15K9.32 mi3.11 mi27590+37615810+14415810+14426608(Top 94%)15406(Top 96%)15406(Top 772%)
20K12.43 mi3.11 mi27281+30915680+13015680+13026334(Top 93%)15271(Top 95%)15271(Top 765%)
Half13.11 mi0.68 mi27206+7515648+3215648+3225688(Top 90%)14967(Top 93%)14967(Top 750%)
25K15.53 mi2.42 mi26939+26715525+12315525+12325417(Top 89%)14828(Top 92%)14828(Top 743%)
30K18.64 mi3.11 mi26567+37215355+17015355+17024556(Top 86%)14336(Top 89%)14336(Top 718%)
20M20.00 mi1.36 mi26420+14715281+7415281+7424309(Top 86%)14130(Top 88%)14130(Top 708%)
21M21.00 mi1.00 mi26215+20515178+10315178+10321496(Top 76%)12743(Top 79%)12743(Top 638%)
35K21.75 mi0.75 mi26181+3415158+2015158+2025052(Top 88%)14378(Top 89%)14378(Top 720%)
23M23.00 mi1.25 mi26051+13015097+6115097+6123349(Top 82%)13507(Top 84%)13507(Top 677%)
24M24.00 mi1.00 mi25971+8015053+4415053+4423121(Top 81%)13373(Top 83%)13373(Top 670%)
40K24.85 mi0.85 mi25895+7615007+4615007+4623228(Top 82%)13355(Top 83%)13355(Top 669%)
25.2M25.20 mi0.35 mi25821+7414956+5114956+5116386(Top 58%)10096(Top 63%)10096(Top 506%)
Finish26.22 mi1.02 mi25741+8014910+4614910+4621797(Top 77%)12690(Top 79%)12690(Top 636%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 94%
×21story building
+97ft-345ft

Overall

26608

Males

15406

M50-54

15406

5K→10K

3.1 - 6.2 mi

Top 97%
×5story building
+79ft-138ft

Overall

27541

Males

15777

M50-54

15777

10K→15K

6.2 - 9.3 mi

Top 94%
×3story building
+67ft-78ft

Overall

26608

Males

15406

M50-54

15406

15K→20K

9.3 - 12.4 mi

Top 93%
×5story building
+106ft-86ft

Overall

26334

Males

15271

M50-54

15271

20K→Half

12.4 - 13.1 mi

Top 90%
×2story building
+19ft-37ft

Overall

25688

Males

14967

M50-54

14967

Half→25K

13.1 - 15.5 mi

Top 89%
×4story building
+66ft-88ft

Overall

25417

Males

14828

M50-54

14828

25K→30K

15.5 - 18.6 mi

Top 86%
×9story building
+181ft-148ft

Overall

24556

Males

14336

M50-54

14336

30K→20M

18.6 - 20.0 mi

Top 86%
×5story building
+64ft-50ft

Overall

24309

Males

14130

M50-54

14130

20M→21M

20.0 - 21.0 mi

Top 76%
×8story building
+106ft-24ft

Overall

21496

Males

12743

M50-54

12743

21M→35K

21.0 - 21.8 mi

Top 88%
×7story building
+17ft-86ft

Overall

25052

Males

14378

M50-54

14378

35K→23M

21.8 - 23.0 mi

Top 82%
×5story building
+23ft-63ft

Overall

23349

Males

13507

M50-54

13507

23M→24M

23.0 - 24.0 mi

Top 81%
×6story building
+12ft-82ft

Overall

23121

Males

13373

M50-54

13373

24M→40K

24.0 - 24.9 mi

Top 82%
×1story
+6ft-20ft

Overall

23228

Males

13355

M50-54

13355

40K→25.2M

24.9 - 25.2 mi

Top 58%
×1story
+13ft-16ft

Overall

16386

Males

10096

M50-54

10096

25.2M→Finish

25.2 - 26.2 mi

Top 77%
×2story building
+22ft-21ft

Overall

21797

Males

12690

M50-54

12690

Passing Analysis

Category:
Athletes Passed
2520
Passed By
28
Net Change
+2492
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#28233
5K → 10K2681+267#28233#27966
10K → 15K3760+376#27966#27590
15K → 20K3112+309#27590#27281
20K → Half750+75#27281#27206
Half → 25K2681+267#27206#26939
25K → 30K3742+372#26939#26567
30K → 20M1514+147#26567#26420
20M → 21M2050+205#26420#26215
21M → 35K4612+34#26215#26181
35K → 23M1322+130#26181#26051
23M → 24M833+80#26051#25971
24M → 40K760+76#25971#25895
40K → 25.2M740+74#25895#25821
25.2M → Finish811+80#25821#25741
TOTALS252028+2492
📊

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