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BOSTON MARATHON 2023

Tristan Loar

Bib: 6398•M

CO

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 19%
Gender (Male)
#0 / 15176
Top 30%
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
21:08
Rank: #4698
Start → 5K
21:08 | 6:48/mi
10K· 6.21 mi
43:09
Rank: #6148 (-1450)
5K → 10K
22:01 | 7:05/mi
15K· 9.32 mi
1:04:10
Rank: #5737 (+411)
10K → 15K
21:01 | 6:46/mi
20K· 12.43 mi
1:25:20
Rank: #5459 (+278)
15K → 20K
21:10 | 6:49/mi
Half· 13.11 mi
1:29:58
Rank: #5453 (+6)
20K → Half
4:38 | 6:47/mi
25K· 15.53 mi
1:46:45
Rank: #5381 (+72)
Half → 25K
16:47 | 6:55/mi
30K· 18.64 mi
2:08:41
Rank: #5209 (+172)
25K → 30K
21:56 | 7:04/mi
20M
2:18:21
Rank: #5129 (+80)
30K → 20M
9:40 | 7:07/mi
21M
2:25:48
Rank: #5047 (+82)
20M → 21M
7:27 | 7:27/mi
35K· 21.75 mi
2:31:00
Rank: #5032 (+15)
21M → 35K
5:12 | 6:57/mi
23M
2:39:59
Rank: #4954 (+78)
35K → 23M
8:59 | 7:10/mi
24M
2:47:04
Rank: #4928 (+26)
23M → 24M
7:05 | 7:05/mi
40K· 24.85 mi
2:53:21
Rank: #4930 (-2)
24M → 40K
6:17 | 7:21/mi
25.2M
2:56:06
Rank: #4930
40K → 25.2M
2:45 | 7:58/mi
Finish· 26.22 mi
3:03:31
Rank: #4949 (-19)
25.2M → Finish
7:25 | 7:17/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:58
Pace6:52 /mi
2nd Half
Distance13.11 mi
Time1:33:33
Pace7:08 /mi
📊Positive Split: 4.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:2421:086:4821:08
6:48
-
10K
6.21 mi10:47:2543:096:5722:01
7:05
+0:17
15K
9.32 mi11:08:261:04:106:5321:01
6:46
-0:19
20K
12.43 mi11:29:361:25:206:5221:10
6:49
+0:03
Half
13.11 mi11:34:141:29:586:524:38
6:47
-0:02
25K
15.53 mi11:51:011:46:456:5216:47
6:55
+0:08
30K
18.64 mi12:12:572:08:416:5421:56
7:04
+0:09
20M
20.00 mi12:22:372:18:216:559:40
7:07
+0:03
21M
21.00 mi12:30:042:25:486:577:27
7:27
+0:20
35K
21.75 mi12:35:162:31:006:575:12
6:57
-0:30
23M
23.00 mi12:44:152:39:596:578:59
7:10
+0:13
24M
24.00 mi12:51:202:47:046:587:05
7:05
-0:05
40K
24.85 mi12:57:372:53:216:586:17
7:21
+0:16
25.2M
25.20 mi13:00:222:56:066:592:45
7:58
+0:37
Finish
26.22 mi13:07:473:03:317:007:25
7:17
-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

6:46 /mi

Average Pace

7:00 /mi

Slowest Pace

7:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:53:19

94% of race

Time at Steady Pace

10:12

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:00 /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 mi10:25:2421:086:4821:08
6:48
#4698
10K
6.21 mi10:47:2543:096:5722:01
7:05
#6148
15K
9.32 mi11:08:261:04:106:5321:01
6:46
#5737
20K
12.43 mi11:29:361:25:206:5221:10
6:49
#5459
Half
13.11 mi11:34:141:29:586:524:38
6:47
#5453
25K
15.53 mi11:51:011:46:456:5216:47
6:55
#5381
30K
18.64 mi12:12:572:08:416:5421:56
7:04
#5209
20M
20.00 mi12:22:372:18:216:559:40
7:07
#5129
21M
21.00 mi12:30:042:25:486:577:27
7:27
#5047
35K
21.75 mi12:35:162:31:006:575:12
6:57
#5032
23M
23.00 mi12:44:152:39:596:578:59
7:10
#4954
24M
24.00 mi12:51:202:47:046:587:05
7:05
#4928
40K
24.85 mi12:57:372:53:216:586:17
7:21
#4930
25.2M
25.20 mi13:00:222:56:066:592:45
7:58
#4930
Finish
26.22 mi13:07:473:03:317:007:25
7:17
#4949
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4698437243724762(Top 18%)4438(Top 29%)4438(Top 84%)
10K6.21 mi3.10 mi6148-14505601-12295601-12297343(Top 28%)6487(Top 43%)6487(Top 123%)
15K9.32 mi3.11 mi5737+4115267+3345267+3344762(Top 18%)4438(Top 29%)4438(Top 84%)
20K12.43 mi3.11 mi5459+2785038+2295038+2294556(Top 17%)4245(Top 28%)4245(Top 80%)
Half13.11 mi0.68 mi5453+65040-25040-25172(Top 19%)4782(Top 32%)4782(Top 90%)
25K15.53 mi2.42 mi5381+724975+654975+655099(Top 19%)4709(Top 31%)4709(Top 89%)
30K18.64 mi3.11 mi5209+1724820+1554820+1554720(Top 18%)4357(Top 29%)4357(Top 82%)
20M20.00 mi1.36 mi5129+804746+744746+744679(Top 18%)4284(Top 28%)4284(Top 81%)
21M21.00 mi1.00 mi5047+824667+794667+794354(Top 16%)3980(Top 26%)3980(Top 75%)
35K21.75 mi0.75 mi5032+154651+164651+165051(Top 19%)4526(Top 30%)4526(Top 86%)
23M23.00 mi1.25 mi4954+784581+704581+704665(Top 18%)4208(Top 28%)4208(Top 80%)
24M24.00 mi1.00 mi4928+264548+334548+335084(Top 19%)4484(Top 30%)4484(Top 85%)
40K24.85 mi0.85 mi4930-24543+54543+55719(Top 21%)4835(Top 32%)4835(Top 91%)
25.2M25.20 mi0.35 mi49304539+44539+46258(Top 24%)5094(Top 34%)5094(Top 96%)
Finish26.22 mi1.02 mi4949-194551-124551-126925(Top 26%)5508(Top 36%)5508(Top 104%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 18%
×21stories
+97ft-345ft

Overall

4762

Males

4438

M18-39

4438

5K→10K

3.1 - 6.2 mi

Top 28%
×5stories
+79ft-138ft

Overall

7343

Males

6487

M18-39

6487

10K→15K

6.2 - 9.3 mi

Top 18%
×3stories
+67ft-78ft

Overall

4762

Males

4438

M18-39

4438

15K→20K

9.3 - 12.4 mi

Top 17%
×5stories
+106ft-86ft

Overall

4556

Males

4245

M18-39

4245

20K→Half

12.4 - 13.1 mi

Top 19%
×2stories
+19ft-37ft

Overall

5172

Males

4782

M18-39

4782

Half→25K

13.1 - 15.5 mi

Top 19%
×4stories
+66ft-88ft

Overall

5099

Males

4709

M18-39

4709

25K→30K

15.5 - 18.6 mi

Top 18%
×9stories
+181ft-148ft

Overall

4720

Males

4357

M18-39

4357

30K→20M

18.6 - 20.0 mi

Top 18%
×5stories
+64ft-50ft

Overall

4679

Males

4284

M18-39

4284

20M→21M

20.0 - 21.0 mi

Top 16%
×8stories
+106ft-24ft

Overall

4354

Males

3980

M18-39

3980

21M→35K

21.0 - 21.8 mi

Top 19%
×7stories
+17ft-86ft

Overall

5051

Males

4526

M18-39

4526

35K→23M

21.8 - 23.0 mi

Top 18%
×5stories
+23ft-63ft

Overall

4665

Males

4208

M18-39

4208

23M→24M

23.0 - 24.0 mi

Top 19%
×6stories
+12ft-82ft

Overall

5084

Males

4484

M18-39

4484

24M→40K

24.0 - 24.9 mi

Top 21%
×1story
+6ft-20ft

Overall

5719

Males

4835

M18-39

4835

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1story
+13ft-16ft

Overall

6258

Males

5094

M18-39

5094

25.2M→Finish

25.2 - 26.2 mi

Top 26%
×2stories
+22ft-21ft

Overall

6925

Males

5508

M18-39

5508

Passing Analysis

Category:
Athletes Passed
1613
Passed By
1864
Net Change
-251
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4698
5K → 10K71457-1450#4698#6148
10K → 15K42615+411#6148#5737
15K → 20K29113+278#5737#5459
20K → Half2519+6#5459#5453
Half → 25K11745+72#5453#5381
25K → 30K22452+172#5381#5209
30K → 20M11434+80#5209#5129
20M → 21M10220+82#5129#5047
21M → 35K4025+15#5047#5032
35K → 23M10527+78#5032#4954
23M → 24M6337+26#4954#4928
24M → 40K4345-2#4928#4930
40K → 25.2M21210#4930#4930
25.2M → Finish3554-19#4930#4949
TOTALS16131864-251
📊

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