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BOSTON MARATHON 2025

Dylan Smith

Bib: 12303•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 39%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Top 42%
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
7:25/mi
23:01
↑ 97↓ 3451.5%
10K· 6.21 mi
7:25/mi
46:02
↑ 79↓ 1380.4%
15K· 9.32 mi
7:30/mi
1:09:19
↑ 67↓ 78
20K· 12.43 mi
7:40/mi
1:33:08
↑ 106↓ 860.1%
Half· 13.11 mi
7:37/mi
1:38:20
↑ 19↓ 370.5%
25K· 15.53 mi
7:43/mi
1:57:02
↑ 66↓ 880.2%
30K· 18.64 mi
8:05/mi
2:22:08
↑ 181↓ 1480.2%
20M
8:09/mi
2:33:13
↑ 64↓ 500.2%
21M
8:35/mi
2:41:48
↑ 106↓ 241.6%
35K· 21.75 mi
7:33/mi
2:47:27
↑ 17↓ 861.7%
23M
8:33/mi
2:58:09
↑ 23↓ 630.6%
24M
7:43/mi
3:05:52
↓ 821.3%
40K· 24.85 mi
7:55/mi
3:12:38
↓ 200.3%
25.2M
9:11/mi
3:15:48
↑ 13↓ 160.2%
Finish· 26.22 mi
7:37/mi
3:23:34
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:20
Pace7:30 /mi
2nd Half
Distance13.11 mi
Time1:45:14
Pace8:02 /mi
📊Positive Split: 7.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:3023:017:2523:01
7:25
-
10K
6.21 mi11:18:3146:027:2523:01
7:25
0:00
15K
9.32 mi11:41:481:09:197:2623:17
7:30
+0:05
20K
12.43 mi12:05:371:33:087:3023:49
7:40
+0:10
Half
13.11 mi12:10:491:38:207:305:12
7:37
-0:03
25K
15.53 mi12:29:311:57:027:3218:42
7:43
+0:06
30K
18.64 mi12:54:372:22:087:3725:06
8:05
+0:22
20M
20.00 mi13:05:422:33:137:4011:05
8:09
+0:04
21M
21.00 mi13:14:172:41:487:428:35
8:35
+0:26
35K
21.75 mi13:19:562:47:277:425:39
7:33
-1:02
23M
23.00 mi13:30:382:58:097:4510:42
8:33
+1:00
24M
24.00 mi13:38:213:05:527:457:43
7:43
-0:50
40K
24.85 mi13:45:073:12:387:456:46
7:55
+0:12
25.2M
25.20 mi13:48:173:15:487:463:10
9:11
+1:16
Finish
26.22 mi13:56:033:23:347:467:46
7:37
-1:34

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

7:25 /mi

Average Pace

7:46 /mi

Slowest Pace

9:11 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

46:02

23% of race

Time at Steady Pace

1:38:54

49% of race

Time at Slower Pace

58:38

29% of race

Average Pace: 7:46 /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 mi10:55:3023:017:2523:01
7:25
#11394
10K
6.21 mi11:18:3146:027:2523:01
7:25
#11306
15K
9.32 mi11:41:481:09:197:2623:17
7:30
#11413
20K
12.43 mi12:05:371:33:087:3023:49
7:40
#11582
Half
13.11 mi12:10:491:38:207:305:12
7:37
#11642
25K
15.53 mi12:29:311:57:027:3218:42
7:43
#11624
30K
18.64 mi12:54:372:22:087:3725:06
8:05
#11637
20M
20.00 mi13:05:422:33:137:4011:05
8:09
#11556
21M
21.00 mi13:14:172:41:487:428:35
8:35
#11500
35K
21.75 mi13:19:562:47:277:425:39
7:33
#11391
23M
23.00 mi13:30:382:58:097:4510:42
8:33
#11513
24M
24.00 mi13:38:213:05:527:457:43
7:43
#11360
40K
24.85 mi13:45:073:12:387:456:46
7:55
#11261
25.2M
25.20 mi13:48:173:15:487:463:10
9:11
#11278
Finish
26.22 mi13:56:033:23:347:467:46
7:37
#11201
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi113948888888811704(Top 41%)8929(Top 55%)8929(Top 374%)
10K6.21 mi3.10 mi11306+888826+628826+6211249(Top 40%)8777(Top 54%)8777(Top 368%)
15K9.32 mi3.11 mi11413-1078846-208846-2011704(Top 41%)8929(Top 55%)8929(Top 374%)
20K12.43 mi3.11 mi11582-1698889-438889-4312081(Top 43%)9005(Top 56%)9005(Top 377%)
Half13.11 mi0.68 mi11642-608929-408929-4012670(Top 45%)9293(Top 58%)9293(Top 389%)
25K15.53 mi2.42 mi11624+188874+558874+5511626(Top 41%)8671(Top 54%)8671(Top 363%)
30K18.64 mi3.11 mi11637-138808+668808+6611936(Top 42%)8642(Top 54%)8642(Top 362%)
20M20.00 mi1.36 mi11556+818725+838725+8311487(Top 40%)8276(Top 51%)8276(Top 347%)
21M21.00 mi1.00 mi11500+568656+698656+6910969(Top 39%)7856(Top 49%)7856(Top 329%)
35K21.75 mi0.75 mi11391+1098579+778579+779012(Top 32%)6874(Top 43%)6874(Top 288%)
23M23.00 mi1.25 mi11513-1228595-168595-1613573(Top 48%)8965(Top 56%)8965(Top 376%)
24M24.00 mi1.00 mi11360+1538491+1048491+1049202(Top 32%)6762(Top 42%)6762(Top 283%)
40K24.85 mi0.85 mi11261+998403+888403+889549(Top 34%)6823(Top 42%)6823(Top 286%)
25.2M25.20 mi0.35 mi11278-178388+158388+1512747(Top 45%)8332(Top 52%)8332(Top 349%)
Finish26.22 mi1.02 mi11201+778318+708318+7010098(Top 36%)7035(Top 44%)7035(Top 295%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
×21story building
+97ft-345ft

Overall

11704

Males

8929

M45-49

8929

5K→10K

3.1 - 6.2 mi

Top 40%
×5story building
+79ft-138ft

Overall

11249

Males

8777

M45-49

8777

10K→15K

6.2 - 9.3 mi

Top 41%
×3story building
+67ft-78ft

Overall

11704

Males

8929

M45-49

8929

15K→20K

9.3 - 12.4 mi

Top 43%
×5story building
+106ft-86ft

Overall

12081

Males

9005

M45-49

9005

20K→Half

12.4 - 13.1 mi

Top 45%
×2story building
+19ft-37ft

Overall

12670

Males

9293

M45-49

9293

Half→25K

13.1 - 15.5 mi

Top 41%
×4story building
+66ft-88ft

Overall

11626

Males

8671

M45-49

8671

25K→30K

15.5 - 18.6 mi

Top 42%
×9story building
+181ft-148ft

Overall

11936

Males

8642

M45-49

8642

30K→20M

18.6 - 20.0 mi

Top 40%
×5story building
+64ft-50ft

Overall

11487

Males

8276

M45-49

8276

20M→21M

20.0 - 21.0 mi

Top 39%
×8story building
+106ft-24ft

Overall

10969

Males

7856

M45-49

7856

21M→35K

21.0 - 21.8 mi

Top 32%
×7story building
+17ft-86ft

Overall

9012

Males

6874

M45-49

6874

35K→23M

21.8 - 23.0 mi

Top 48%
×5story building
+23ft-63ft

Overall

13573

Males

8965

M45-49

8965

23M→24M

23.0 - 24.0 mi

Top 32%
×6story building
+12ft-82ft

Overall

9202

Males

6762

M45-49

6762

24M→40K

24.0 - 24.9 mi

Top 34%
×1story
+6ft-20ft

Overall

9549

Males

6823

M45-49

6823

40K→25.2M

24.9 - 25.2 mi

Top 45%
×1story
+13ft-16ft

Overall

12747

Males

8332

M45-49

8332

25.2M→Finish

25.2 - 26.2 mi

Top 36%
×2story building
+22ft-21ft

Overall

10098

Males

7035

M45-49

7035

Passing Analysis

Category:
Athletes Passed
1899
Passed By
1706
Net Change
+193
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11394
5K → 10K294206+88#11394#11306
10K → 15K144251-107#11306#11413
15K → 20K126295-169#11413#11582
20K → Half1878-60#11582#11642
Half → 25K169151+18#11642#11624
25K → 30K225238-13#11624#11637
30K → 20M15574+81#11637#11556
20M → 21M13377+56#11556#11500
21M → 35K12415+109#11500#11391
35K → 23M74196-122#11391#11513
23M → 24M17219+153#11513#11360
24M → 40K12122+99#11360#11261
40K → 25.2M3148-17#11261#11278
25.2M → Finish11336+77#11278#11201
TOTALS18991706+193
📊

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