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BOSTON MARATHON 2023

Torin O'Brien

Bib: 3437•M

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 7%
Gender (Male)
#0 / 15176
Top 12%
Division (M18-39)
#0 / 5285
Top 28%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:34
Rank: #3001
Start → 5K
20:34 | 6:37/mi
10K· 6.21 mi
40:38
Rank: #2724 (+277)
5K → 10K
20:04 | 6:28/mi
15K· 9.32 mi
1:00:51
Rank: #2683 (+41)
10K → 15K
20:13 | 6:30/mi
20K· 12.43 mi
1:21:09
Rank: #2619 (+64)
15K → 20K
20:18 | 6:32/mi
Half· 13.11 mi
1:25:32
Rank: #2602 (+17)
20K → Half
4:23 | 6:25/mi
25K· 15.53 mi
1:41:20
Rank: #2534 (+68)
Half → 25K
15:48 | 6:31/mi
30K· 18.64 mi
2:01:48
Rank: #2390 (+144)
25K → 30K
20:28 | 6:35/mi
20M
2:10:41
Rank: #2313 (+77)
30K → 20M
8:53 | 6:32/mi
21M
2:17:23
Rank: #2219 (+94)
20M → 21M
6:42 | 6:42/mi
35K· 21.75 mi
2:22:09
Rank: #2186 (+33)
21M → 35K
4:46 | 6:22/mi
23M
2:30:20
Rank: #2115 (+71)
35K → 23M
8:11 | 6:32/mi
24M
2:36:41
Rank: #2057 (+58)
23M → 24M
6:21 | 6:21/mi
40K· 24.85 mi
2:42:11
Rank: #1999 (+58)
24M → 40K
5:30 | 6:26/mi
25.2M
2:44:32
Rank: #1976 (+23)
40K → 25.2M
2:21 | 6:49/mi
Finish· 26.22 mi
2:50:47
Rank: #1903 (+73)
25.2M → Finish
6:15 | 6:08/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:25:32
Pace6:31 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:25:15
Pace6:30 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:5420:346:3720:34
6:37
-
10K
6.21 mi10:41:5840:386:3220:04
6:28
-0:09
15K
9.32 mi11:02:111:00:516:3220:13
6:30
+0:02
20K
12.43 mi11:22:291:21:096:3220:18
6:32
+0:02
Half
13.11 mi11:26:521:25:326:314:23
6:25
-0:07
25K
15.53 mi11:42:401:41:206:3115:48
6:31
+0:06
30K
18.64 mi12:03:082:01:486:3220:28
6:35
+0:04
20M
20.00 mi12:12:012:10:416:328:53
6:32
-0:03
21M
21.00 mi12:18:432:17:236:336:42
6:42
+0:10
35K
21.75 mi12:23:292:22:096:324:46
6:22
-0:20
23M
23.00 mi12:31:402:30:206:328:11
6:32
+0:10
24M
24.00 mi12:38:012:36:416:326:21
6:21
-0:11
40K
24.85 mi12:43:312:42:116:325:30
6:26
+0:05
25.2M
25.20 mi12:45:522:44:326:322:21
6:49
+0:23
Finish
26.22 mi12:52:072:50:476:316:15
6:08
-0:41

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

6:08 /mi

Average Pace

6:31 /mi

Slowest Pace

6:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:48:26

99% of race

Time at Steady Pace

2:21

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:31 /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 mi10:21:5420:346:3720:34
6:37
#3001
10K
6.21 mi10:41:5840:386:3220:04
6:28
#2724
15K
9.32 mi11:02:111:00:516:3220:13
6:30
#2683
20K
12.43 mi11:22:291:21:096:3220:18
6:32
#2619
Half
13.11 mi11:26:521:25:326:314:23
6:25
#2602
25K
15.53 mi11:42:401:41:206:3115:48
6:31
#2534
30K
18.64 mi12:03:082:01:486:3220:28
6:35
#2390
20M
20.00 mi12:12:012:10:416:328:53
6:32
#2313
21M
21.00 mi12:18:432:17:236:336:42
6:42
#2219
35K
21.75 mi12:23:292:22:096:324:46
6:22
#2186
23M
23.00 mi12:31:402:30:206:328:11
6:32
#2115
24M
24.00 mi12:38:012:36:416:326:21
6:21
#2057
40K
24.85 mi12:43:312:42:116:325:30
6:26
#1999
25.2M
25.20 mi12:45:522:44:326:322:21
6:49
#1976
Finish
26.22 mi12:52:072:50:476:316:15
6:08
#1903
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3001284328432666(Top 10%)2547(Top 17%)2547(Top 48%)
10K6.21 mi3.10 mi2724+2772599+2442599+2442538(Top 10%)2425(Top 16%)2425(Top 46%)
15K9.32 mi3.11 mi2683+412562+372562+372666(Top 10%)2547(Top 17%)2547(Top 48%)
20K12.43 mi3.11 mi2619+642503+592503+592469(Top 9%)2364(Top 16%)2364(Top 45%)
Half13.11 mi0.68 mi2602+172488+152488+152313(Top 9%)2218(Top 15%)2218(Top 42%)
25K15.53 mi2.42 mi2534+682426+622426+622237(Top 8%)2145(Top 14%)2145(Top 41%)
30K18.64 mi3.11 mi2390+1442291+1352291+1351907(Top 7%)1825(Top 12%)1825(Top 35%)
20M20.00 mi1.36 mi2313+772220+712220+711604(Top 6%)1532(Top 10%)1532(Top 29%)
21M21.00 mi1.00 mi2219+942127+932127+931111(Top 4%)1057(Top 7%)1057(Top 20%)
35K21.75 mi0.75 mi2186+332094+332094+331848(Top 7%)1754(Top 12%)1754(Top 33%)
23M23.00 mi1.25 mi2115+712028+662028+661560(Top 6%)1482(Top 10%)1482(Top 28%)
24M24.00 mi1.00 mi2057+581973+551973+551518(Top 6%)1437(Top 9%)1437(Top 27%)
40K24.85 mi0.85 mi1999+581915+581915+581328(Top 5%)1255(Top 8%)1255(Top 24%)
25.2M25.20 mi0.35 mi1976+231892+231892+231214(Top 5%)1153(Top 8%)1153(Top 22%)
Finish26.22 mi1.02 mi1903+731820+721820+721093(Top 4%)1042(Top 7%)1042(Top 20%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 10%
×21stories
+97ft-345ft

Overall

2666

Males

2547

M18-39

2547

5K→10K

3.1 - 6.2 mi

Top 10%
×5stories
+79ft-138ft

Overall

2538

Males

2425

M18-39

2425

10K→15K

6.2 - 9.3 mi

Top 10%
×3stories
+67ft-78ft

Overall

2666

Males

2547

M18-39

2547

15K→20K

9.3 - 12.4 mi

Top 9%
×5stories
+106ft-86ft

Overall

2469

Males

2364

M18-39

2364

20K→Half

12.4 - 13.1 mi

Top 9%
×2stories
+19ft-37ft

Overall

2313

Males

2218

M18-39

2218

Half→25K

13.1 - 15.5 mi

Top 8%
×4stories
+66ft-88ft

Overall

2237

Males

2145

M18-39

2145

25K→30K

15.5 - 18.6 mi

Top 7%
×9stories
+181ft-148ft

Overall

1907

Males

1825

M18-39

1825

30K→20M

18.6 - 20.0 mi

Top 6%
×5stories
+64ft-50ft

Overall

1604

Males

1532

M18-39

1532

20M→21M

20.0 - 21.0 mi

Top 4%
×8stories
+106ft-24ft

Overall

1111

Males

1057

M18-39

1057

21M→35K

21.0 - 21.8 mi

Top 7%
×7stories
+17ft-86ft

Overall

1848

Males

1754

M18-39

1754

35K→23M

21.8 - 23.0 mi

Top 6%
×5stories
+23ft-63ft

Overall

1560

Males

1482

M18-39

1482

23M→24M

23.0 - 24.0 mi

Top 6%
×6stories
+12ft-82ft

Overall

1518

Males

1437

M18-39

1437

24M→40K

24.0 - 24.9 mi

Top 5%
×1story
+6ft-20ft

Overall

1328

Males

1255

M18-39

1255

40K→25.2M

24.9 - 25.2 mi

Top 5%
×1story
+13ft-16ft

Overall

1214

Males

1153

M18-39

1153

25.2M→Finish

25.2 - 26.2 mi

Top 4%
×2stories
+22ft-21ft

Overall

1093

Males

1042

M18-39

1042

Passing Analysis

Category:
Athletes Passed
1326
Passed By
228
Net Change
+1098
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3001
5K → 10K33255+277#3001#2724
10K → 15K9756+41#2724#2683
15K → 20K10440+64#2683#2619
20K → Half247+17#2619#2602
Half → 25K8719+68#2602#2534
25K → 30K15713+144#2534#2390
30K → 20M814+77#2390#2313
20M → 21M973+94#2313#2219
21M → 35K374+33#2219#2186
35K → 23M787+71#2186#2115
23M → 24M679+58#2115#2057
24M → 40K624+58#2057#1999
40K → 25.2M263+23#1999#1976
25.2M → Finish774+73#1976#1903
TOTALS1326228+1098
📊

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