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BOSTON MARATHON 2025

David Ellyson

Bib: 4989•M

QC

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 22%
Gender (Male)
#0 / 16105
Top 34%
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
19:20
Rank: #1991
Start → 5K
19:20 | 6:13/mi
10K· 6.21 mi
39:24
Rank: #2679 (-688)
5K → 10K
20:04 | 6:28/mi
15K· 9.32 mi
1:00:22
Rank: #3524 (-845)
10K → 15K
20:58 | 6:45/mi
20K· 12.43 mi
1:22:45
Rank: #4621 (-1097)
15K → 20K
22:23 | 7:12/mi
Half· 13.11 mi
1:27:31
Rank: #4785 (-164)
20K → Half
4:46 | 6:59/mi
25K· 15.53 mi
1:45:19
Rank: #5529 (-744)
Half → 25K
17:48 | 7:20/mi
30K· 18.64 mi
2:08:38
Rank: #5988 (-459)
25K → 30K
23:19 | 7:30/mi
20M
2:18:52
Rank: #6023 (-35)
30K → 20M
10:14 | 7:32/mi
21M
2:26:56
Rank: #6065 (-42)
20M → 21M
8:04 | 8:04/mi
35K· 21.75 mi
2:32:43
Rank: #6153 (-88)
21M → 35K
5:47 | 7:44/mi
23M
2:42:21
Rank: #6166 (-13)
35K → 23M
9:38 | 7:42/mi
24M
2:49:48
Rank: #6158 (+8)
23M → 24M
7:27 | 7:27/mi
40K· 24.85 mi
2:56:29
Rank: #6194 (-36)
24M → 40K
6:41 | 7:49/mi
25.2M
2:59:30
Rank: #6225 (-31)
40K → 25.2M
3:01 | 8:45/mi
Finish· 26.22 mi
3:06:50
Rank: #6201 (+24)
25.2M → Finish
7:20 | 7:12/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:31
Pace6:41 /mi
2nd Half
Distance13.11 mi
Time1:39:19
Pace7:35 /mi
📊Positive Split: 13.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:2719:206:1319:20
6:13
-
10K
6.21 mi10:42:3139:246:2020:04
6:28
+0:15
15K
9.32 mi11:03:291:00:226:2920:58
6:45
+0:17
20K
12.43 mi11:25:521:22:456:4022:23
7:12
+0:27
Half
13.11 mi11:30:381:27:316:414:46
6:59
-0:13
25K
15.53 mi11:48:261:45:196:4717:48
7:20
+0:21
30K
18.64 mi12:11:452:08:386:5423:19
7:30
+0:10
20M
20.00 mi12:21:592:18:526:5710:14
7:32
+0:02
21M
21.00 mi12:30:032:26:567:008:04
8:04
+0:32
35K
21.75 mi12:35:502:32:437:015:47
7:44
-0:20
23M
23.00 mi12:45:282:42:217:049:38
7:42
-0:02
24M
24.00 mi12:52:552:49:487:057:27
7:27
-0:15
40K
24.85 mi12:59:362:56:297:066:41
7:49
+0:22
25.2M
25.20 mi13:02:372:59:307:073:01
8:45
+0:56
Finish
26.22 mi13:09:573:06:507:087:20
7:12
-1:33

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

6:13 /mi

Average Pace

7:08 /mi

Slowest Pace

8:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:05:08

35% of race

Time at Steady Pace

1:43:56

56% of race

Time at Slower Pace

17:46

10% of race

Average Pace: 7:08 /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 mi10:22:2719:206:1319:20
6:13
#1991
10K
6.21 mi10:42:3139:246:2020:04
6:28
#2679
15K
9.32 mi11:03:291:00:226:2920:58
6:45
#3524
20K
12.43 mi11:25:521:22:456:4022:23
7:12
#4621
Half
13.11 mi11:30:381:27:316:414:46
6:59
#4785
25K
15.53 mi11:48:261:45:196:4717:48
7:20
#5529
30K
18.64 mi12:11:452:08:386:5423:19
7:30
#5988
20M
20.00 mi12:21:592:18:526:5710:14
7:32
#6023
21M
21.00 mi12:30:032:26:567:008:04
8:04
#6065
35K
21.75 mi12:35:502:32:437:015:47
7:44
#6153
23M
23.00 mi12:45:282:42:217:049:38
7:42
#6166
24M
24.00 mi12:52:552:49:487:057:27
7:27
#6158
40K
24.85 mi12:59:362:56:297:066:41
7:49
#6194
25.2M
25.20 mi13:02:372:59:307:073:01
8:45
#6225
Finish
26.22 mi13:09:573:06:507:087:20
7:12
#6201
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1991189418945554(Top 20%)5086(Top 32%)5086(Top 90%)
10K6.21 mi3.10 mi2679-6882550-6562550-6563431(Top 12%)3255(Top 20%)3255(Top 58%)
15K9.32 mi3.11 mi3524-8453342-7923342-7925554(Top 20%)5086(Top 32%)5086(Top 90%)
20K12.43 mi3.11 mi4621-10974322-9804322-9808231(Top 29%)7003(Top 43%)7003(Top 124%)
Half13.11 mi0.68 mi4785-1644462-1404462-1407409(Top 26%)6499(Top 40%)6499(Top 115%)
25K15.53 mi2.42 mi5529-7445081-6195081-6198653(Top 30%)7139(Top 44%)7139(Top 127%)
30K18.64 mi3.11 mi5988-4595433-3525433-3527755(Top 27%)6436(Top 40%)6436(Top 114%)
20M20.00 mi1.36 mi6023-355436-35436-37179(Top 25%)5942(Top 37%)5942(Top 105%)
21M21.00 mi1.00 mi6065-425457-215457-217701(Top 27%)6084(Top 38%)6084(Top 108%)
35K21.75 mi0.75 mi6153-885520-635520-6310223(Top 36%)7457(Top 46%)7457(Top 132%)
23M23.00 mi1.25 mi6166-135507+135507+137834(Top 28%)6056(Top 38%)6056(Top 107%)
24M24.00 mi1.00 mi6158+85484+235484+237327(Top 26%)5714(Top 35%)5714(Top 101%)
40K24.85 mi0.85 mi6194-365491-75491-78836(Top 31%)6418(Top 40%)6418(Top 114%)
25.2M25.20 mi0.35 mi6225-315499-85499-810180(Top 36%)7004(Top 43%)7004(Top 124%)
Finish26.22 mi1.02 mi6201+245458+415458+416994(Top 25%)5324(Top 33%)5324(Top 94%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 20%
×21stories
+97ft-345ft

Overall

5554

Males

5086

M18-39

5086

5K→10K

3.1 - 6.2 mi

Top 12%
×5stories
+79ft-138ft

Overall

3431

Males

3255

M18-39

3255

10K→15K

6.2 - 9.3 mi

Top 20%
×3stories
+67ft-78ft

Overall

5554

Males

5086

M18-39

5086

15K→20K

9.3 - 12.4 mi

Top 29%
×5stories
+106ft-86ft

Overall

8231

Males

7003

M18-39

7003

20K→Half

12.4 - 13.1 mi

Top 26%
×2stories
+19ft-37ft

Overall

7409

Males

6499

M18-39

6499

Half→25K

13.1 - 15.5 mi

Top 30%
×4stories
+66ft-88ft

Overall

8653

Males

7139

M18-39

7139

25K→30K

15.5 - 18.6 mi

Top 27%
×9stories
+181ft-148ft

Overall

7755

Males

6436

M18-39

6436

30K→20M

18.6 - 20.0 mi

Top 25%
×5stories
+64ft-50ft

Overall

7179

Males

5942

M18-39

5942

20M→21M

20.0 - 21.0 mi

Top 27%
×8stories
+106ft-24ft

Overall

7701

Males

6084

M18-39

6084

21M→35K

21.0 - 21.8 mi

Top 36%
×7stories
+17ft-86ft

Overall

10223

Males

7457

M18-39

7457

35K→23M

21.8 - 23.0 mi

Top 28%
×5stories
+23ft-63ft

Overall

7834

Males

6056

M18-39

6056

23M→24M

23.0 - 24.0 mi

Top 26%
×6stories
+12ft-82ft

Overall

7327

Males

5714

M18-39

5714

24M→40K

24.0 - 24.9 mi

Top 31%
×1story
+6ft-20ft

Overall

8836

Males

6418

M18-39

6418

40K→25.2M

24.9 - 25.2 mi

Top 36%
×1story
+13ft-16ft

Overall

10180

Males

7004

M18-39

7004

25.2M→Finish

25.2 - 26.2 mi

Top 25%
×2stories
+22ft-21ft

Overall

6994

Males

5324

M18-39

5324

Passing Analysis

Category:
Athletes Passed
525
Passed By
4735
Net Change
-4210
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1991
5K → 10K6694-688#1991#2679
10K → 15K5850-845#2679#3524
15K → 20K71104-1097#3524#4621
20K → Half3167-164#4621#4785
Half → 25K17761-744#4785#5529
25K → 30K76535-459#5529#5988
30K → 20M6196-35#5988#6023
20M → 21M5496-42#6023#6065
21M → 35K18106-88#6065#6153
35K → 23M8396-13#6153#6166
23M → 24M6456+8#6166#6158
24M → 40K3874-36#6158#6194
40K → 25.2M2253-31#6194#6225
25.2M → Finish7147+24#6225#6201
TOTALS5254735-4210
📊

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