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BOSTON MARATHON 2025

Spencer Matthews

Bib: 1350•M

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 26%
Gender (Male)
#0 / 16105
Top 39%
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:19
Rank: #4121
Start → 5K
20:19 | 6:32/mi
10K· 6.21 mi
40:32
Rank: #3943 (+178)
5K → 10K
20:13 | 6:30/mi
15K· 9.32 mi
1:01:26
Rank: #4335 (-392)
10K → 15K
20:54 | 6:44/mi
20K· 12.43 mi
1:21:12
Rank: #3731 (+604)
15K → 20K
19:46 | 6:22/mi
Half· 13.11 mi
1:25:34
Rank: #3700 (+31)
20K → Half
4:22 | 6:24/mi
25K· 15.53 mi
1:42:53
Rank: #4166 (-466)
Half → 25K
17:19 | 7:09/mi
30K· 18.64 mi
2:05:57
Rank: #4806 (-640)
25K → 30K
23:04 | 7:25/mi
20M
2:17:11
Rank: #5440 (-634)
30K → 20M
11:14 | 8:16/mi
21M
2:26:04
Rank: #5788 (-348)
20M → 21M
8:53 | 8:53/mi
35K· 21.75 mi
2:32:11
Rank: #6024 (-236)
21M → 35K
6:07 | 8:11/mi
23M
2:43:59
Rank: #6593 (-569)
35K → 23M
11:48 | 9:25/mi
24M
2:52:51
Rank: #7023 (-430)
23M → 24M
8:52 | 8:52/mi
40K· 24.85 mi
3:00:56
Rank: #7426 (-403)
24M → 40K
8:05 | 9:27/mi
25.2M
3:04:02
Rank: #7493 (-67)
40K → 25.2M
3:06 | 8:59/mi
Finish· 26.22 mi
3:11:29
Rank: #7464 (+29)
25.2M → Finish
7:27 | 7:19/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:25:34
Pace6:32 /mi
2nd Half
Distance13.11 mi
Time1:45:55
Pace8:05 /mi
📊Positive Split: 23.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:3320:196:3220:19
6:32
-
10K
6.21 mi10:44:4640:326:3120:13
6:30
-0:02
15K
9.32 mi11:05:401:01:266:3520:54
6:44
+0:14
20K
12.43 mi11:25:261:21:126:3219:46
6:22
-0:22
Half
13.11 mi11:29:481:25:346:324:22
6:24
+0:02
25K
15.53 mi11:47:071:42:536:3717:19
7:09
+0:45
30K
18.64 mi12:10:112:05:576:4523:04
7:25
+0:16
20M
20.00 mi12:21:252:17:116:5211:14
8:16
+0:51
21M
21.00 mi12:30:182:26:046:578:53
8:53
+0:37
35K
21.75 mi12:36:252:32:117:006:07
8:11
-0:42
23M
23.00 mi12:48:132:43:597:0811:48
9:25
+1:14
24M
24.00 mi12:57:052:52:517:128:52
8:52
-0:33
40K
24.85 mi13:05:103:00:567:178:05
9:27
+0:35
25.2M
25.20 mi13:08:163:04:027:183:06
8:59
-0:28
Finish
26.22 mi13:15:433:11:297:197:27
7:19
-1:40

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

6:22 /mi

Average Pace

7:19 /mi

Slowest Pace

9:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:25:34

45% of race

Time at Steady Pace

47:50

25% of race

Time at Slower Pace

58:05

30% of race

Average Pace: 7:18 /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 mi10:24:3320:196:3220:19
6:32
#4121
10K
6.21 mi10:44:4640:326:3120:13
6:30
#3943
15K
9.32 mi11:05:401:01:266:3520:54
6:44
#4335
20K
12.43 mi11:25:261:21:126:3219:46
6:22
#3731
Half
13.11 mi11:29:481:25:346:324:22
6:24
#3700
25K
15.53 mi11:47:071:42:536:3717:19
7:09
#4166
30K
18.64 mi12:10:112:05:576:4523:04
7:25
#4806
20M
20.00 mi12:21:252:17:116:5211:14
8:16
#5440
21M
21.00 mi12:30:182:26:046:578:53
8:53
#5788
35K
21.75 mi12:36:252:32:117:006:07
8:11
#6024
23M
23.00 mi12:48:132:43:597:0811:48
9:25
#6593
24M
24.00 mi12:57:052:52:517:128:52
8:52
#7023
40K
24.85 mi13:05:103:00:567:178:05
9:27
#7426
25.2M
25.20 mi13:08:163:04:027:183:06
8:59
#7493
Finish
26.22 mi13:15:433:11:297:197:27
7:19
#7464
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4121388538855339(Top 19%)4927(Top 31%)4927(Top 87%)
10K6.21 mi3.10 mi3943+1783727+1583727+1583780(Top 13%)3565(Top 22%)3565(Top 63%)
15K9.32 mi3.11 mi4335-3924077-3504077-3505339(Top 19%)4927(Top 31%)4927(Top 87%)
20K12.43 mi3.11 mi3731+6043523+5543523+5542328(Top 8%)2221(Top 14%)2221(Top 39%)
Half13.11 mi0.68 mi3700+313497+263497+263065(Top 11%)2926(Top 18%)2926(Top 52%)
25K15.53 mi2.42 mi4166-4663914-4173914-4177222(Top 25%)6267(Top 39%)6267(Top 111%)
30K18.64 mi3.11 mi4806-6404448-5344448-5347192(Top 25%)6079(Top 38%)6079(Top 108%)
20M20.00 mi1.36 mi5440-6344980-5324980-53212227(Top 43%)8624(Top 54%)8624(Top 153%)
21M21.00 mi1.00 mi5788-3485249-2695249-26912770(Top 45%)8711(Top 54%)8711(Top 154%)
35K21.75 mi0.75 mi6024-2365410-1615410-16113392(Top 47%)8968(Top 56%)8968(Top 159%)
23M23.00 mi1.25 mi6593-5695811-4015811-40118321(Top 65%)11119(Top 69%)11119(Top 197%)
24M24.00 mi1.00 mi7023-4306078-2676078-26716635(Top 59%)10300(Top 64%)10300(Top 183%)
40K24.85 mi0.85 mi7426-4036306-2286306-22818484(Top 65%)11051(Top 69%)11051(Top 196%)
25.2M25.20 mi0.35 mi7493-676334-286334-2811628(Top 41%)7762(Top 48%)7762(Top 138%)
Finish26.22 mi1.02 mi7464+296284+506284+507819(Top 28%)5797(Top 36%)5797(Top 103%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 19%
×21stories
+97ft-345ft

Overall

5339

Males

4927

M18-39

4927

5K→10K

3.1 - 6.2 mi

Top 13%
×5stories
+79ft-138ft

Overall

3780

Males

3565

M18-39

3565

10K→15K

6.2 - 9.3 mi

Top 19%
×3stories
+67ft-78ft

Overall

5339

Males

4927

M18-39

4927

15K→20K

9.3 - 12.4 mi

Top 8%
×5stories
+106ft-86ft

Overall

2328

Males

2221

M18-39

2221

20K→Half

12.4 - 13.1 mi

Top 11%
×2stories
+19ft-37ft

Overall

3065

Males

2926

M18-39

2926

Half→25K

13.1 - 15.5 mi

Top 25%
×4stories
+66ft-88ft

Overall

7222

Males

6267

M18-39

6267

25K→30K

15.5 - 18.6 mi

Top 25%
×9stories
+181ft-148ft

Overall

7192

Males

6079

M18-39

6079

30K→20M

18.6 - 20.0 mi

Top 43%
×5stories
+64ft-50ft

Overall

12227

Males

8624

M18-39

8624

20M→21M

20.0 - 21.0 mi

Top 45%
×8stories
+106ft-24ft

Overall

12770

Males

8711

M18-39

8711

21M→35K

21.0 - 21.8 mi

Top 47%
×7stories
+17ft-86ft

Overall

13392

Males

8968

M18-39

8968

35K→23M

21.8 - 23.0 mi

Top 65%
×5stories
+23ft-63ft

Overall

18321

Males

11119

M18-39

11119

23M→24M

23.0 - 24.0 mi

Top 59%
×6stories
+12ft-82ft

Overall

16635

Males

10300

M18-39

10300

24M→40K

24.0 - 24.9 mi

Top 65%
×1story
+6ft-20ft

Overall

18484

Males

11051

M18-39

11051

40K→25.2M

24.9 - 25.2 mi

Top 41%
×1story
+13ft-16ft

Overall

11628

Males

7762

M18-39

7762

25.2M→Finish

25.2 - 26.2 mi

Top 28%
×2stories
+22ft-21ft

Overall

7819

Males

5797

M18-39

5797

Passing Analysis

Category:
Athletes Passed
1128
Passed By
4471
Net Change
-3343
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4121
5K → 10K25577+178#4121#3943
10K → 15K21413-392#3943#4335
15K → 20K6040+604#4335#3731
20K → Half365+31#3731#3700
Half → 25K17483-466#3700#4166
25K → 30K34674-640#4166#4806
30K → 20M8642-634#4806#5440
20M → 21M14362-348#5440#5788
21M → 35K10246-236#5788#6024
35K → 23M16585-569#6024#6593
23M → 24M12442-430#6593#7023
24M → 40K10413-403#7023#7426
40K → 25.2M1380-67#7426#7493
25.2M → Finish7849+29#7493#7464
TOTALS11284471-3343
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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