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BOSTON MARATHON 2023

Liam Row

Bib: 579•M

IN

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 3%
Gender (Male)
#0 / 15176
Top 6%
Division (M18-39)
#0 / 5285
Top 14%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
17:29
Rank: #200
Start → 5K
17:29 | 5:38/mi
10K· 6.21 mi
34:59
Rank: #220 (-20)
5K → 10K
17:30 | 5:38/mi
15K· 9.32 mi
52:38
Rank: #215 (+5)
10K → 15K
17:39 | 5:41/mi
20K· 12.43 mi
1:10:35
Rank: #232 (-17)
15K → 20K
17:57 | 5:47/mi
Half· 13.11 mi
1:14:27
Rank: #233 (-1)
20K → Half
3:52 | 5:40/mi
25K· 15.53 mi
1:29:02
Rank: #277 (-44)
Half → 25K
14:35 | 6:01/mi
30K· 18.64 mi
1:49:47
Rank: #401 (-124)
25K → 30K
20:45 | 6:41/mi
20M
1:59:15
Rank: #485 (-84)
30K → 20M
9:28 | 6:58/mi
21M
2:06:58
Rank: #587 (-102)
20M → 21M
7:43 | 7:43/mi
35K· 21.75 mi
2:12:02
Rank: #638 (-51)
21M → 35K
5:04 | 6:46/mi
23M
2:20:59
Rank: #743 (-105)
35K → 23M
8:57 | 7:09/mi
24M
2:27:52
Rank: #785 (-42)
23M → 24M
6:53 | 6:53/mi
40K· 24.85 mi
2:34:00
Rank: #841 (-56)
24M → 40K
6:08 | 7:10/mi
25.2M
2:36:36
Rank: #856 (-15)
40K → 25.2M
2:36 | 7:32/mi
Finish· 26.22 mi
2:43:32
Rank: #908 (-52)
25.2M → Finish
6:56 | 6:48/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:14:27
Pace5:41 /mi
2nd Half
Distance13.11 mi
Time1:29:05
Pace6:48 /mi
📊Positive Split: 19.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:17:3717:295:3817:29
5:38
-
10K
6.21 mi10:35:0734:595:3817:30
5:38
0:00
15K
9.32 mi10:52:4652:385:3917:39
5:41
+0:03
20K
12.43 mi11:10:431:10:355:4117:57
5:47
+0:06
Half
13.11 mi11:14:351:14:275:413:52
5:40
-0:07
25K
15.53 mi11:29:101:29:025:4414:35
6:01
+0:21
30K
18.64 mi11:49:551:49:475:5320:45
6:41
+0:40
20M
20.00 mi11:59:231:59:155:589:28
6:58
+0:17
21M
21.00 mi12:07:062:06:586:037:43
7:43
+0:45
35K
21.75 mi12:12:102:12:026:045:04
6:46
-0:57
23M
23.00 mi12:21:072:20:596:088:57
7:09
+0:23
24M
24.00 mi12:28:002:27:526:106:53
6:53
-0:16
40K
24.85 mi12:34:082:34:006:126:08
7:10
+0:17
25.2M
25.20 mi12:36:442:36:366:132:36
7:32
+0:22
Finish
26.22 mi12:43:402:43:326:156:56
6:48
-0:44

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

5:38 /mi

Average Pace

6:15 /mi

Slowest Pace

7:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:29:02

54% of race

Time at Steady Pace

49:06

30% of race

Time at Slower Pace

25:24

16% of race

Average Pace: 6:14 /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 mi10:17:3717:295:3817:29
5:38
#200
10K
6.21 mi10:35:0734:595:3817:30
5:38
#220
15K
9.32 mi10:52:4652:385:3917:39
5:41
#215
20K
12.43 mi11:10:431:10:355:4117:57
5:47
#232
Half
13.11 mi11:14:351:14:275:413:52
5:40
#233
25K
15.53 mi11:29:101:29:025:4414:35
6:01
#277
30K
18.64 mi11:49:551:49:475:5320:45
6:41
#401
20M
20.00 mi11:59:231:59:155:589:28
6:58
#485
21M
21.00 mi12:07:062:06:586:037:43
7:43
#587
35K
21.75 mi12:12:102:12:026:045:04
6:46
#638
23M
23.00 mi12:21:072:20:596:088:57
7:09
#743
24M
24.00 mi12:28:002:27:526:106:53
6:53
#785
40K
24.85 mi12:34:082:34:006:126:08
7:10
#841
25.2M
25.20 mi12:36:442:36:366:132:36
7:32
#856
Finish
26.22 mi12:43:402:43:326:156:56
6:48
#908
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi200200200224(Top 0.8%)196(Top 1%)196(Top 4%)
10K6.21 mi3.10 mi220-20193+7193+7228(Top 0.9%)200(Top 1%)200(Top 4%)
15K9.32 mi3.11 mi215+5188+5188+5224(Top 0.8%)196(Top 1%)196(Top 4%)
20K12.43 mi3.11 mi232-17205-17205-17278(Top 1%)250(Top 2%)250(Top 5%)
Half13.11 mi0.68 mi233-1206-1206-1252(Top 0.9%)230(Top 2%)230(Top 4%)
25K15.53 mi2.42 mi277-44249-43249-43571(Top 2%)531(Top 3%)531(Top 10%)
30K18.64 mi3.11 mi401-124369-120369-1202291(Top 9%)2185(Top 14%)2185(Top 41%)
20M20.00 mi1.36 mi485-84448-79448-793775(Top 14%)3511(Top 23%)3511(Top 66%)
21M21.00 mi1.00 mi587-102547-99547-995674(Top 21%)4946(Top 33%)4946(Top 94%)
35K21.75 mi0.75 mi638-51597-50597-503948(Top 15%)3623(Top 24%)3623(Top 69%)
23M23.00 mi1.25 mi743-105700-103700-1034517(Top 17%)4089(Top 27%)4089(Top 77%)
24M24.00 mi1.00 mi785-42741-41741-414058(Top 15%)3689(Top 24%)3689(Top 70%)
40K24.85 mi0.85 mi841-56795-54795-544690(Top 18%)4117(Top 27%)4117(Top 78%)
25.2M25.20 mi0.35 mi856-15810-15810-153973(Top 15%)3515(Top 23%)3515(Top 67%)
Finish26.22 mi1.02 mi908-52861-51861-514044(Top 15%)3565(Top 23%)3565(Top 67%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 0.8%
×21stories
+97ft-345ft

Overall

224

Males

196

M18-39

196

5K→10K

3.1 - 6.2 mi

Top 0.9%
×5stories
+79ft-138ft

Overall

228

Males

200

M18-39

200

10K→15K

6.2 - 9.3 mi

Top 0.8%
×3stories
+67ft-78ft

Overall

224

Males

196

M18-39

196

15K→20K

9.3 - 12.4 mi

Top 1%
×5stories
+106ft-86ft

Overall

278

Males

250

M18-39

250

20K→Half

12.4 - 13.1 mi

Top 0.9%
×2stories
+19ft-37ft

Overall

252

Males

230

M18-39

230

Half→25K

13.1 - 15.5 mi

Top 2%
×4stories
+66ft-88ft

Overall

571

Males

531

M18-39

531

25K→30K

15.5 - 18.6 mi

Top 9%
×9stories
+181ft-148ft

Overall

2291

Males

2185

M18-39

2185

30K→20M

18.6 - 20.0 mi

Top 14%
×5stories
+64ft-50ft

Overall

3775

Males

3511

M18-39

3511

20M→21M

20.0 - 21.0 mi

Top 21%
×8stories
+106ft-24ft

Overall

5674

Males

4946

M18-39

4946

21M→35K

21.0 - 21.8 mi

Top 15%
×7stories
+17ft-86ft

Overall

3948

Males

3623

M18-39

3623

35K→23M

21.8 - 23.0 mi

Top 17%
×5stories
+23ft-63ft

Overall

4517

Males

4089

M18-39

4089

23M→24M

23.0 - 24.0 mi

Top 15%
×6stories
+12ft-82ft

Overall

4058

Males

3689

M18-39

3689

24M→40K

24.0 - 24.9 mi

Top 18%
×1story
+6ft-20ft

Overall

4690

Males

4117

M18-39

4117

40K→25.2M

24.9 - 25.2 mi

Top 15%
×1story
+13ft-16ft

Overall

3973

Males

3515

M18-39

3515

25.2M→Finish

25.2 - 26.2 mi

Top 15%
×2stories
+22ft-21ft

Overall

4044

Males

3565

M18-39

3565

Passing Analysis

Category:
Athletes Passed
46
Passed By
754
Net Change
-708
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#200
5K → 10K1737-20#200#220
10K → 15K72+5#220#215
15K → 20K320-17#215#232
20K → Half12-1#232#233
Half → 25K246-44#233#277
25K → 30K1125-124#277#401
30K → 20M084-84#401#485
20M → 21M0102-102#485#587
21M → 35K051-51#587#638
35K → 23M2107-105#638#743
23M → 24M345-42#743#785
24M → 40K359-56#785#841
40K → 25.2M217-15#841#856
25.2M → Finish557-52#856#908
TOTALS46754-708
📊

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