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BOSTON MARATHON 2023

Timothy Larson

Bib: 8439•M

RI

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 16%
Gender (Male)
#0 / 15176
Top 27%
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
22:01
Rank: #6779
Start → 5K
22:01 | 7:05/mi
10K· 6.21 mi
43:29
Rank: #6479 (+300)
5K → 10K
21:28 | 6:55/mi
15K· 9.32 mi
1:04:55
Rank: #6279 (+200)
10K → 15K
21:26 | 6:54/mi
20K· 12.43 mi
1:26:32
Rank: #6121 (+158)
15K → 20K
21:37 | 6:57/mi
Half· 13.11 mi
1:31:16
Rank: #6120 (+1)
20K → Half
4:44 | 6:56/mi
25K· 15.53 mi
1:47:57
Rank: #5903 (+217)
Half → 25K
16:41 | 6:53/mi
30K· 18.64 mi
2:09:42
Rank: #5567 (+336)
25K → 30K
21:45 | 7:00/mi
20M
2:19:04
Rank: #5378 (+189)
30K → 20M
9:22 | 6:54/mi
21M
2:26:06
Rank: #5137 (+241)
20M → 21M
7:02 | 7:02/mi
35K· 21.75 mi
2:31:04
Rank: #5047 (+90)
21M → 35K
4:58 | 6:38/mi
23M
2:39:33
Rank: #4832 (+215)
35K → 23M
8:29 | 6:47/mi
24M
2:46:08
Rank: #4678 (+154)
23M → 24M
6:35 | 6:35/mi
40K· 24.85 mi
2:51:47
Rank: #4539 (+139)
24M → 40K
5:39 | 6:36/mi
25.2M
2:54:15
Rank: #4496 (+43)
40K → 25.2M
2:28 | 7:09/mi
Finish· 26.22 mi
3:00:48
Rank: #4373 (+123)
25.2M → Finish
6:33 | 6:26/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:31:16
Pace6:58 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:29:32
Pace6:50 /mi
📊Negative Split: 1.9% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:2322:017:0522:01
7:05
-
10K
6.21 mi11:08:5143:297:0021:28
6:55
-0:10
15K
9.32 mi11:30:171:04:556:5821:26
6:54
-0:01
20K
12.43 mi11:51:541:26:326:5821:37
6:57
+0:03
Half
13.11 mi11:56:381:31:166:584:44
6:56
-0:01
25K
15.53 mi12:13:191:47:576:5716:41
6:53
-0:03
30K
18.64 mi12:35:042:09:426:5721:45
7:00
+0:07
20M
20.00 mi12:44:262:19:046:579:22
6:54
-0:06
21M
21.00 mi12:51:282:26:066:577:02
7:02
+0:08
35K
21.75 mi12:56:262:31:046:574:58
6:38
-0:24
23M
23.00 mi13:04:552:39:336:568:29
6:47
+0:09
24M
24.00 mi13:11:302:46:086:556:35
6:35
-0:12
40K
24.85 mi13:17:092:51:476:555:39
6:36
+0:01
25.2M
25.20 mi13:19:372:54:156:552:28
7:09
+0:33
Finish
26.22 mi13:26:103:00:486:546:33
6:26
-0:43

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

6:26 /mi

Average Pace

6:54 /mi

Slowest Pace

7:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:36:19

86% of race

Time at Steady Pace

24:29

14% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:54 /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 mi10:47:2322:017:0522:01
7:05
#6779
10K
6.21 mi11:08:5143:297:0021:28
6:55
#6479
15K
9.32 mi11:30:171:04:556:5821:26
6:54
#6279
20K
12.43 mi11:51:541:26:326:5821:37
6:57
#6121
Half
13.11 mi11:56:381:31:166:584:44
6:56
#6120
25K
15.53 mi12:13:191:47:576:5716:41
6:53
#5903
30K
18.64 mi12:35:042:09:426:5721:45
7:00
#5567
20M
20.00 mi12:44:262:19:046:579:22
6:54
#5378
21M
21.00 mi12:51:282:26:066:577:02
7:02
#5137
35K
21.75 mi12:56:262:31:046:574:58
6:38
#5047
23M
23.00 mi13:04:552:39:336:568:29
6:47
#4832
24M
24.00 mi13:11:302:46:086:556:35
6:35
#4678
40K
24.85 mi13:17:092:51:476:555:39
6:36
#4539
25.2M
25.20 mi13:19:372:54:156:552:28
7:09
#4496
Finish
26.22 mi13:26:103:00:486:546:33
6:26
#4373
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi6779610361035939(Top 22%)5414(Top 36%)5414(Top 102%)
10K6.21 mi3.10 mi6479+3005853+2505853+2506182(Top 23%)5604(Top 37%)5604(Top 106%)
15K9.32 mi3.11 mi6279+2005693+1605693+1605939(Top 22%)5414(Top 36%)5414(Top 102%)
20K12.43 mi3.11 mi6121+1585570+1235570+1235692(Top 21%)5219(Top 34%)5219(Top 99%)
Half13.11 mi0.68 mi6120+15568+25568+26142(Top 23%)5585(Top 37%)5585(Top 106%)
25K15.53 mi2.42 mi5903+2175405+1635405+1634807(Top 18%)4453(Top 29%)4453(Top 84%)
30K18.64 mi3.11 mi5567+3365117+2885117+2884345(Top 16%)4037(Top 27%)4037(Top 76%)
20M20.00 mi1.36 mi5378+1894958+1594958+1593394(Top 13%)3177(Top 21%)3177(Top 60%)
21M21.00 mi1.00 mi5137+2414742+2164742+2162334(Top 9%)2207(Top 15%)2207(Top 42%)
35K21.75 mi0.75 mi5047+904664+784664+783253(Top 12%)3038(Top 20%)3038(Top 57%)
23M23.00 mi1.25 mi4832+2154483+1814483+1812540(Top 10%)2386(Top 16%)2386(Top 45%)
24M24.00 mi1.00 mi4678+1544349+1344349+1342507(Top 9%)2343(Top 15%)2343(Top 44%)
40K24.85 mi0.85 mi4539+1394226+1234226+1231969(Top 7%)1851(Top 12%)1851(Top 35%)
25.2M25.20 mi0.35 mi4496+434189+374189+372376(Top 9%)2209(Top 15%)2209(Top 42%)
Finish26.22 mi1.02 mi4373+1234080+1094080+1092160(Top 8%)2005(Top 13%)2005(Top 38%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 22%
×21stories
+97ft-345ft

Overall

5939

Males

5414

M18-39

5414

5K→10K

3.1 - 6.2 mi

Top 23%
×5stories
+79ft-138ft

Overall

6182

Males

5604

M18-39

5604

10K→15K

6.2 - 9.3 mi

Top 22%
×3stories
+67ft-78ft

Overall

5939

Males

5414

M18-39

5414

15K→20K

9.3 - 12.4 mi

Top 21%
×5stories
+106ft-86ft

Overall

5692

Males

5219

M18-39

5219

20K→Half

12.4 - 13.1 mi

Top 23%
×2stories
+19ft-37ft

Overall

6142

Males

5585

M18-39

5585

Half→25K

13.1 - 15.5 mi

Top 18%
×4stories
+66ft-88ft

Overall

4807

Males

4453

M18-39

4453

25K→30K

15.5 - 18.6 mi

Top 16%
×9stories
+181ft-148ft

Overall

4345

Males

4037

M18-39

4037

30K→20M

18.6 - 20.0 mi

Top 13%
×5stories
+64ft-50ft

Overall

3394

Males

3177

M18-39

3177

20M→21M

20.0 - 21.0 mi

Top 9%
×8stories
+106ft-24ft

Overall

2334

Males

2207

M18-39

2207

21M→35K

21.0 - 21.8 mi

Top 12%
×7stories
+17ft-86ft

Overall

3253

Males

3038

M18-39

3038

35K→23M

21.8 - 23.0 mi

Top 10%
×5stories
+23ft-63ft

Overall

2540

Males

2386

M18-39

2386

23M→24M

23.0 - 24.0 mi

Top 9%
×6stories
+12ft-82ft

Overall

2507

Males

2343

M18-39

2343

24M→40K

24.0 - 24.9 mi

Top 7%
×1story
+6ft-20ft

Overall

1969

Males

1851

M18-39

1851

40K→25.2M

24.9 - 25.2 mi

Top 9%
×1story
+13ft-16ft

Overall

2376

Males

2209

M18-39

2209

25.2M→Finish

25.2 - 26.2 mi

Top 8%
×2stories
+22ft-21ft

Overall

2160

Males

2005

M18-39

2005

Passing Analysis

Category:
Athletes Passed
2593
Passed By
187
Net Change
+2406
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6779
5K → 10K37474+300#6779#6479
10K → 15K23636+200#6479#6279
15K → 20K18931+158#6279#6121
20K → Half1716+1#6121#6120
Half → 25K2247+217#6120#5903
25K → 30K3426+336#5903#5567
30K → 20M1934+189#5567#5378
20M → 21M2410+241#5378#5137
21M → 35K922+90#5137#5047
35K → 23M2161+215#5047#4832
23M → 24M1562+154#4832#4678
24M → 40K1401+139#4678#4539
40K → 25.2M485+43#4539#4496
25.2M → Finish1252+123#4496#4373
TOTALS2593187+2406
📊

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