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BOSTON MARATHON 2025

Matthew Dejong

Bib: 2284•M

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 7%
Gender (Male)
#0 / 16105
Top 12%
Division (M18-39)
#0 / 5642
Top 29%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:49
Rank: #2940
Start → 5K
19:49 | 6:23/mi
10K· 6.21 mi
39:31
Rank: #2785 (+155)
5K → 10K
19:42 | 6:20/mi
15K· 9.32 mi
59:22
Rank: #2795 (-10)
10K → 15K
19:51 | 6:23/mi
20K· 12.43 mi
1:19:16
Rank: #2726 (+69)
15K → 20K
19:54 | 6:24/mi
Half· 13.11 mi
1:23:34
Rank: #2702 (+24)
20K → Half
4:18 | 6:18/mi
25K· 15.53 mi
1:38:55
Rank: #2557 (+145)
Half → 25K
15:21 | 6:20/mi
30K· 18.64 mi
1:58:53
Rank: #2327 (+230)
25K → 30K
19:58 | 6:26/mi
20M
2:07:39
Rank: #2233 (+94)
30K → 20M
8:46 | 6:27/mi
21M
2:14:27
Rank: #2164 (+69)
20M → 21M
6:48 | 6:48/mi
35K· 21.75 mi
2:19:12
Rank: #2134 (+30)
21M → 35K
4:45 | 6:21/mi
23M
2:27:26
Rank: #2072 (+62)
35K → 23M
8:14 | 6:35/mi
24M
2:34:00
Rank: #2045 (+27)
23M → 24M
6:34 | 6:34/mi
40K· 24.85 mi
2:39:48
Rank: #2041 (+4)
24M → 40K
5:48 | 6:47/mi
25.2M
2:42:24
Rank: #2053 (-12)
40K → 25.2M
2:36 | 7:32/mi
Finish· 26.22 mi
2:49:01
Rank: #2084 (-31)
25.2M → Finish
6:37 | 6:30/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:23:34
Pace6:22 /mi
2nd Half
Distance13.11 mi
Time1:25:27
Pace6:31 /mi
📊Positive Split: 2.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:3519:496:2319:49
6:23
-
10K
6.21 mi10:40:1739:316:2219:42
6:20
-0:03
15K
9.32 mi11:00:0859:226:2219:51
6:23
+0:03
20K
12.43 mi11:20:021:19:166:2319:54
6:24
+0:01
Half
13.11 mi11:24:201:23:346:224:18
6:18
-0:06
25K
15.53 mi11:39:411:38:556:2215:21
6:20
+0:02
30K
18.64 mi11:59:391:58:536:2319:58
6:26
+0:06
20M
20.00 mi12:08:252:07:396:238:46
6:27
+0:01
21M
21.00 mi12:15:132:14:276:246:48
6:48
+0:21
35K
21.75 mi12:19:582:19:126:244:45
6:21
-0:27
23M
23.00 mi12:28:122:27:266:258:14
6:35
+0:14
24M
24.00 mi12:34:462:34:006:256:34
6:34
-0:01
40K
24.85 mi12:40:342:39:486:265:48
6:47
+0:13
25.2M
25.20 mi12:43:102:42:246:272:36
7:32
+0:45
Finish
26.22 mi12:49:472:49:016:276:37
6:30
-1:02

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

6:18 /mi

Average Pace

6:27 /mi

Slowest Pace

7:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:46:25

98% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

2:36

2% of race

Average Pace: 6:27 /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 mi10:20:3519:496:2319:49
6:23
#2940
10K
6.21 mi10:40:1739:316:2219:42
6:20
#2785
15K
9.32 mi11:00:0859:226:2219:51
6:23
#2795
20K
12.43 mi11:20:021:19:166:2319:54
6:24
#2726
Half
13.11 mi11:24:201:23:346:224:18
6:18
#2702
25K
15.53 mi11:39:411:38:556:2215:21
6:20
#2557
30K
18.64 mi11:59:391:58:536:2319:58
6:26
#2327
20M
20.00 mi12:08:252:07:396:238:46
6:27
#2233
21M
21.00 mi12:15:132:14:276:246:48
6:48
#2164
35K
21.75 mi12:19:582:19:126:244:45
6:21
#2134
23M
23.00 mi12:28:122:27:266:258:14
6:35
#2072
24M
24.00 mi12:34:462:34:006:256:34
6:34
#2045
40K
24.85 mi12:40:342:39:486:265:48
6:47
#2041
25.2M
25.20 mi12:43:102:42:246:272:36
7:32
#2053
Finish
26.22 mi12:49:472:49:016:276:37
6:30
#2084
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2940279627962850(Top 10%)2715(Top 17%)2715(Top 48%)
10K6.21 mi3.10 mi2785+1552652+1442652+1442668(Top 9%)2542(Top 16%)2542(Top 45%)
15K9.32 mi3.11 mi2795-102664-122664-122850(Top 10%)2715(Top 17%)2715(Top 48%)
20K12.43 mi3.11 mi2726+692598+662598+662536(Top 9%)2417(Top 15%)2417(Top 43%)
Half13.11 mi0.68 mi2702+242578+202578+202483(Top 9%)2372(Top 15%)2372(Top 42%)
25K15.53 mi2.42 mi2557+1452441+1372441+1372013(Top 7%)1917(Top 12%)1917(Top 34%)
30K18.64 mi3.11 mi2327+2302222+2192222+2191657(Top 6%)1571(Top 10%)1571(Top 28%)
20M20.00 mi1.36 mi2233+942130+922130+921441(Top 5%)1363(Top 8%)1363(Top 24%)
21M21.00 mi1.00 mi2164+692063+672063+671529(Top 5%)1440(Top 9%)1440(Top 26%)
35K21.75 mi0.75 mi2134+302033+302033+301795(Top 6%)1684(Top 10%)1684(Top 30%)
23M23.00 mi1.25 mi2072+621971+621971+621726(Top 6%)1614(Top 10%)1614(Top 29%)
24M24.00 mi1.00 mi2045+271942+291942+292315(Top 8%)2140(Top 13%)2140(Top 38%)
40K24.85 mi0.85 mi2041+41937+51937+52732(Top 10%)2476(Top 15%)2476(Top 44%)
25.2M25.20 mi0.35 mi2053-121947-101947-103501(Top 12%)3045(Top 19%)3045(Top 54%)
Finish26.22 mi1.02 mi2084-311977-301977-302761(Top 10%)2468(Top 15%)2468(Top 44%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 10%
×21stories
+97ft-345ft

Overall

2850

Males

2715

M18-39

2715

5K→10K

3.1 - 6.2 mi

Top 9%
×5stories
+79ft-138ft

Overall

2668

Males

2542

M18-39

2542

10K→15K

6.2 - 9.3 mi

Top 10%
×3stories
+67ft-78ft

Overall

2850

Males

2715

M18-39

2715

15K→20K

9.3 - 12.4 mi

Top 9%
×5stories
+106ft-86ft

Overall

2536

Males

2417

M18-39

2417

20K→Half

12.4 - 13.1 mi

Top 9%
×2stories
+19ft-37ft

Overall

2483

Males

2372

M18-39

2372

Half→25K

13.1 - 15.5 mi

Top 7%
×4stories
+66ft-88ft

Overall

2013

Males

1917

M18-39

1917

25K→30K

15.5 - 18.6 mi

Top 6%
×9stories
+181ft-148ft

Overall

1657

Males

1571

M18-39

1571

30K→20M

18.6 - 20.0 mi

Top 5%
×5stories
+64ft-50ft

Overall

1441

Males

1363

M18-39

1363

20M→21M

20.0 - 21.0 mi

Top 5%
×8stories
+106ft-24ft

Overall

1529

Males

1440

M18-39

1440

21M→35K

21.0 - 21.8 mi

Top 6%
×7stories
+17ft-86ft

Overall

1795

Males

1684

M18-39

1684

35K→23M

21.8 - 23.0 mi

Top 6%
×5stories
+23ft-63ft

Overall

1726

Males

1614

M18-39

1614

23M→24M

23.0 - 24.0 mi

Top 8%
×6stories
+12ft-82ft

Overall

2315

Males

2140

M18-39

2140

24M→40K

24.0 - 24.9 mi

Top 10%
×1story
+6ft-20ft

Overall

2732

Males

2476

M18-39

2476

40K→25.2M

24.9 - 25.2 mi

Top 12%
×1story
+13ft-16ft

Overall

3501

Males

3045

M18-39

3045

25.2M→Finish

25.2 - 26.2 mi

Top 10%
×2stories
+22ft-21ft

Overall

2761

Males

2468

M18-39

2468

Passing Analysis

Category:
Athletes Passed
1217
Passed By
361
Net Change
+856
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2940
5K → 10K21964+155#2940#2785
10K → 15K6676-10#2785#2795
15K → 20K11445+69#2795#2726
20K → Half306+24#2726#2702
Half → 25K1538+145#2702#2557
25K → 30K2399+230#2557#2327
30K → 20M973+94#2327#2233
20M → 21M756+69#2233#2164
21M → 35K4010+30#2164#2134
35K → 23M708+62#2134#2072
23M → 24M5326+27#2072#2045
24M → 40K3632+4#2045#2041
40K → 25.2M921-12#2041#2053
25.2M → Finish1647-31#2053#2084
TOTALS1217361+856
📊

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