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BOSTON MARATHON 2023

David Lyons

Bib: 26829•M

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
29:07
Rank: #21725
Start → 5K
29:07 | 9:22/mi
10K· 6.21 mi
57:55
Rank: #21796 (-71)
5K → 10K
28:48 | 9:16/mi
15K· 9.32 mi
1:25:59
Rank: #21443 (+353)
10K → 15K
28:04 | 9:02/mi
20K· 12.43 mi
1:55:47
Rank: #21560 (-117)
15K → 20K
29:48 | 9:36/mi
Half· 13.11 mi
2:02:02
Rank: #21523 (+37)
20K → Half
6:15 | 9:10/mi
25K· 15.53 mi
2:25:26
Rank: #21493 (+30)
Half → 25K
23:24 | 9:39/mi
30K· 18.64 mi
2:56:21
Rank: #21352 (+141)
25K → 30K
30:55 | 9:57/mi
20M
3:10:20
Rank: #21337 (+15)
30K → 20M
13:59 | 10:17/mi
21M
3:21:21
Rank: #21306 (+31)
20M → 21M
11:01 | 11:01/mi
35K· 21.75 mi
3:29:00
Rank: #21316 (-10)
21M → 35K
7:39 | 10:14/mi
23M
3:42:43
Rank: #21394 (-78)
35K → 23M
13:43 | 10:57/mi
24M
3:53:18
Rank: #21441 (-47)
23M → 24M
10:35 | 10:35/mi
40K· 24.85 mi
4:02:20
Rank: #21446 (-5)
24M → 40K
9:02 | 10:34/mi
25.2M
4:06:37
Rank: #21492 (-46)
40K → 25.2M
4:17 | 12:25/mi
Finish· 26.22 mi
4:16:59
Rank: #21516 (-24)
25.2M → Finish
10:22 | 10:10/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:02:02
Pace9:19 /mi
2nd Half
Distance13.11 mi
Time2:14:57
Pace10:18 /mi
📊Positive Split: 10.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:5029:079:2229:07
9:22
-
10K
6.21 mi12:14:3857:559:1928:48
9:16
-0:06
15K
9.32 mi12:42:421:25:599:1428:04
9:02
-0:14
20K
12.43 mi13:12:301:55:479:1929:48
9:36
+0:34
Half
13.11 mi13:18:452:02:029:196:15
9:10
-0:26
25K
15.53 mi13:42:092:25:269:2223:24
9:39
+0:29
30K
18.64 mi14:13:042:56:219:2830:55
9:57
+0:18
20M
20.00 mi14:27:033:10:209:3113:59
10:17
+0:20
21M
21.00 mi14:38:043:21:219:3511:01
11:01
+0:44
35K
21.75 mi14:45:433:29:009:377:39
10:14
-0:47
23M
23.00 mi14:59:263:42:439:4113:43
10:57
+0:43
24M
24.00 mi15:10:013:53:189:4310:35
10:35
-0:22
40K
24.85 mi15:19:034:02:209:459:02
10:34
-0:01
25.2M
25.20 mi15:23:204:06:379:474:17
12:25
+1:51
Finish
26.22 mi15:33:424:16:599:4910:22
10:10
-2:15

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

9:02 /mi

Average Pace

9:49 /mi

Slowest Pace

12:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:25:26

57% of race

Time at Steady Pace

1:22:32

32% of race

Time at Slower Pace

29:01

11% of race

Average Pace: 9:48 /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 mi11:45:5029:079:2229:07
9:22
#21725
10K
6.21 mi12:14:3857:559:1928:48
9:16
#21796
15K
9.32 mi12:42:421:25:599:1428:04
9:02
#21443
20K
12.43 mi13:12:301:55:479:1929:48
9:36
#21560
Half
13.11 mi13:18:452:02:029:196:15
9:10
#21523
25K
15.53 mi13:42:092:25:269:2223:24
9:39
#21493
30K
18.64 mi14:13:042:56:219:2830:55
9:57
#21352
20M
20.00 mi14:27:033:10:209:3113:59
10:17
#21337
21M
21.00 mi14:38:043:21:219:3511:01
11:01
#21306
35K
21.75 mi14:45:433:29:009:377:39
10:14
#21316
23M
23.00 mi14:59:263:42:439:4113:43
10:57
#21394
24M
24.00 mi15:10:013:53:189:4310:35
10:35
#21441
40K
24.85 mi15:19:034:02:209:459:02
10:34
#21446
25.2M
25.20 mi15:23:204:06:379:474:17
12:25
#21492
Finish
26.22 mi15:33:424:16:599:4910:22
10:10
#21516
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi21725129531295320645(Top 78%)12586(Top 83%)12586(Top 238%)
10K6.21 mi3.10 mi21796-7113037-8413037-8421829(Top 82%)13077(Top 86%)13077(Top 247%)
15K9.32 mi3.11 mi21443+35312899+13812899+13820645(Top 78%)12586(Top 83%)12586(Top 238%)
20K12.43 mi3.11 mi21560-11712954-5512954-5521823(Top 82%)13106(Top 86%)13106(Top 248%)
Half13.11 mi0.68 mi21523+3712941+1312941+1321027(Top 79%)12747(Top 84%)12747(Top 241%)
25K15.53 mi2.42 mi21493+3012931+1012931+1021296(Top 80%)12837(Top 85%)12837(Top 243%)
30K18.64 mi3.11 mi21352+14112852+7912852+7920893(Top 78%)12590(Top 83%)12590(Top 238%)
20M20.00 mi1.36 mi21337+1512828+2412828+2421242(Top 80%)12674(Top 84%)12674(Top 240%)
21M21.00 mi1.00 mi21306+3112804+2412804+2420860(Top 78%)12455(Top 82%)12455(Top 236%)
35K21.75 mi0.75 mi21316-1012805-112805-121826(Top 82%)12853(Top 85%)12853(Top 243%)
23M23.00 mi1.25 mi21394-7812831-2612831-2622252(Top 84%)13037(Top 86%)13037(Top 247%)
24M24.00 mi1.00 mi21441-4712841-1012841-1022193(Top 83%)12964(Top 85%)12964(Top 245%)
40K24.85 mi0.85 mi21446-512829+1212829+1221359(Top 80%)12525(Top 83%)12525(Top 237%)
25.2M25.20 mi0.35 mi21492-4612841-1212841-1223143(Top 87%)13383(Top 88%)13383(Top 253%)
Finish26.22 mi1.02 mi21516-2412851-1012851-1022214(Top 83%)12955(Top 85%)12955(Top 245%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 78%
×21stories
+97ft-345ft

Overall

20645

Males

12586

M18-39

12586

5K→10K

3.1 - 6.2 mi

Top 82%
×5stories
+79ft-138ft

Overall

21829

Males

13077

M18-39

13077

10K→15K

6.2 - 9.3 mi

Top 78%
×3stories
+67ft-78ft

Overall

20645

Males

12586

M18-39

12586

15K→20K

9.3 - 12.4 mi

Top 82%
×5stories
+106ft-86ft

Overall

21823

Males

13106

M18-39

13106

20K→Half

12.4 - 13.1 mi

Top 79%
×2stories
+19ft-37ft

Overall

21027

Males

12747

M18-39

12747

Half→25K

13.1 - 15.5 mi

Top 80%
×4stories
+66ft-88ft

Overall

21296

Males

12837

M18-39

12837

25K→30K

15.5 - 18.6 mi

Top 78%
×9stories
+181ft-148ft

Overall

20893

Males

12590

M18-39

12590

30K→20M

18.6 - 20.0 mi

Top 80%
×5stories
+64ft-50ft

Overall

21242

Males

12674

M18-39

12674

20M→21M

20.0 - 21.0 mi

Top 78%
×8stories
+106ft-24ft

Overall

20860

Males

12455

M18-39

12455

21M→35K

21.0 - 21.8 mi

Top 82%
×7stories
+17ft-86ft

Overall

21826

Males

12853

M18-39

12853

35K→23M

21.8 - 23.0 mi

Top 84%
×5stories
+23ft-63ft

Overall

22252

Males

13037

M18-39

13037

23M→24M

23.0 - 24.0 mi

Top 83%
×6stories
+12ft-82ft

Overall

22193

Males

12964

M18-39

12964

24M→40K

24.0 - 24.9 mi

Top 80%
×1story
+6ft-20ft

Overall

21359

Males

12525

M18-39

12525

40K→25.2M

24.9 - 25.2 mi

Top 87%
×1story
+13ft-16ft

Overall

23143

Males

13383

M18-39

13383

25.2M→Finish

25.2 - 26.2 mi

Top 83%
×2stories
+22ft-21ft

Overall

22214

Males

12955

M18-39

12955

Passing Analysis

Category:
Athletes Passed
1425
Passed By
1216
Net Change
+209
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21725
5K → 10K244315-71#21725#21796
10K → 15K38936+353#21796#21443
15K → 20K88205-117#21443#21560
20K → Half458+37#21560#21523
Half → 25K12595+30#21523#21493
25K → 30K19150+141#21493#21352
30K → 20M8065+15#21352#21337
20M → 21M7948+31#21337#21306
21M → 35K2636-10#21306#21316
35K → 23M47125-78#21316#21394
23M → 24M2774-47#21394#21441
24M → 40K4348-5#21441#21446
40K → 25.2M753-46#21446#21492
25.2M → Finish3458-24#21492#21516
TOTALS14251216+209
📊

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