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BOSTON MARATHON 2023

Larry Aller

Bib: 851•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 2%
Gender (Male)
#0 / 15176
Top 3%
Masters (Masters Men)
#0 / 9891
Top 0.5%
Division (M40-44)
#0 / 2241
Top 2%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:36
Rank: #664
Start → 5K
18:36 | 5:59/mi
10K· 6.21 mi
37:07
Rank: #675 (-11)
5K → 10K
18:31 | 5:58/mi
15K· 9.32 mi
55:44
Rank: #672 (+3)
10K → 15K
18:37 | 6:00/mi
20K· 12.43 mi
1:14:26
Rank: #649 (+23)
15K → 20K
18:42 | 6:01/mi
Half· 13.11 mi
1:18:29
Rank: #643 (+6)
20K → Half
4:03 | 5:56/mi
25K· 15.53 mi
1:33:02
Rank: #615 (+28)
Half → 25K
14:33 | 6:00/mi
30K· 18.64 mi
1:51:53
Rank: #577 (+38)
25K → 30K
18:51 | 6:04/mi
20M
2:00:03
Rank: #548 (+29)
30K → 20M
8:10 | 6:01/mi
21M
2:06:20
Rank: #529 (+19)
20M → 21M
6:17 | 6:17/mi
35K· 21.75 mi
2:10:36
Rank: #515 (+14)
21M → 35K
4:16 | 5:42/mi
23M
2:18:01
Rank: #485 (+30)
35K → 23M
7:25 | 5:55/mi
24M
2:23:48
Rank: #470 (+15)
23M → 24M
5:47 | 5:47/mi
40K· 24.85 mi
2:28:52
Rank: #459 (+11)
24M → 40K
5:04 | 5:56/mi
25.2M
2:31:02
Rank: #449 (+10)
40K → 25.2M
2:10 | 6:17/mi
Finish· 26.22 mi
2:37:05
Rank: #437 (+12)
25.2M → Finish
6:03 | 5:56/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:18:29
Pace5:59 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:18:36
Pace6:00 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:4318:365:5918:36
5:59
-
10K
6.21 mi10:37:1437:075:5818:31
5:58
-0:01
15K
9.32 mi10:55:5155:445:5918:37
6:00
+0:02
20K
12.43 mi11:14:331:14:265:5918:42
6:01
+0:01
Half
13.11 mi11:18:361:18:295:594:03
5:56
-0:05
25K
15.53 mi11:33:091:33:025:5914:33
6:00
+0:04
30K
18.64 mi11:52:001:51:536:0018:51
6:04
+0:04
20M
20.00 mi12:00:102:00:036:008:10
6:01
-0:03
21M
21.00 mi12:06:272:06:206:016:17
6:17
+0:16
35K
21.75 mi12:10:432:10:366:004:16
5:42
-0:35
23M
23.00 mi12:18:082:18:016:007:25
5:55
+0:13
24M
24.00 mi12:23:552:23:486:005:47
5:47
-0:08
40K
24.85 mi12:28:592:28:525:595:04
5:56
+0:09
25.2M
25.20 mi12:31:092:31:026:002:10
6:17
+0:21
Finish
26.22 mi12:37:122:37:056:006:03
5:56
-0:21

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

5:42 /mi

Average Pace

6:00 /mi

Slowest Pace

6:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:28:38

95% of race

Time at Steady Pace

8:27

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 5:59 /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 mi10:18:4318:365:5918:36
5:59
#664
10K
6.21 mi10:37:1437:075:5818:31
5:58
#675
15K
9.32 mi10:55:5155:445:5918:37
6:00
#672
20K
12.43 mi11:14:331:14:265:5918:42
6:01
#649
Half
13.11 mi11:18:361:18:295:594:03
5:56
#643
25K
15.53 mi11:33:091:33:025:5914:33
6:00
#615
30K
18.64 mi11:52:001:51:536:0018:51
6:04
#577
20M
20.00 mi12:00:102:00:036:008:10
6:01
#548
21M
21.00 mi12:06:272:06:206:016:17
6:17
#529
35K
21.75 mi12:10:432:10:366:004:16
5:42
#515
23M
23.00 mi12:18:082:18:016:007:25
5:55
#485
24M
24.00 mi12:23:552:23:486:005:47
5:47
#470
40K
24.85 mi12:28:592:28:525:595:04
5:56
#459
25.2M
25.20 mi12:31:092:31:026:002:10
6:17
#449
Finish
26.22 mi12:37:122:37:056:006:03
5:56
#437
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi664620620681(Top 3%)638(Top 4%)638(Top 28%)
10K6.21 mi3.10 mi675-11631-11631-11714(Top 3%)670(Top 4%)670(Top 30%)
15K9.32 mi3.11 mi672+3629+2629+2681(Top 3%)638(Top 4%)638(Top 28%)
20K12.43 mi3.11 mi649+23606+23606+23589(Top 2%)549(Top 4%)549(Top 24%)
Half13.11 mi0.68 mi643+6600+6600+6599(Top 2%)561(Top 4%)561(Top 25%)
25K15.53 mi2.42 mi615+28574+26574+26542(Top 2%)504(Top 3%)504(Top 22%)
30K18.64 mi3.11 mi577+38537+37537+37462(Top 2%)430(Top 3%)430(Top 19%)
20M20.00 mi1.36 mi548+29508+29508+29354(Top 1%)327(Top 2%)327(Top 15%)
21M21.00 mi1.00 mi529+19491+17491+17332(Top 1%)305(Top 2%)305(Top 14%)
35K21.75 mi0.75 mi515+14477+14477+14240(Top 0.9%)217(Top 1%)217(Top 10%)
23M23.00 mi1.25 mi485+30448+29448+29240(Top 0.9%)216(Top 1%)216(Top 10%)
24M24.00 mi1.00 mi470+15434+14434+14228(Top 0.9%)205(Top 1%)205(Top 9%)
40K24.85 mi0.85 mi459+11423+11423+11255(Top 1.0%)232(Top 2%)232(Top 10%)
25.2M25.20 mi0.35 mi449+10414+9414+9221(Top 0.8%)202(Top 1%)202(Top 9%)
Finish26.22 mi1.02 mi437+12402+12402+12583(Top 2%)554(Top 4%)554(Top 25%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 3%
×21stories
+97ft-345ft

Overall

681

Males

638

M40-44

638

5K→10K

3.1 - 6.2 mi

Top 3%
×5stories
+79ft-138ft

Overall

714

Males

670

M40-44

670

10K→15K

6.2 - 9.3 mi

Top 3%
×3stories
+67ft-78ft

Overall

681

Males

638

M40-44

638

15K→20K

9.3 - 12.4 mi

Top 2%
×5stories
+106ft-86ft

Overall

589

Males

549

M40-44

549

20K→Half

12.4 - 13.1 mi

Top 2%
×2stories
+19ft-37ft

Overall

599

Males

561

M40-44

561

Half→25K

13.1 - 15.5 mi

Top 2%
×4stories
+66ft-88ft

Overall

542

Males

504

M40-44

504

25K→30K

15.5 - 18.6 mi

Top 2%
×9stories
+181ft-148ft

Overall

462

Males

430

M40-44

430

30K→20M

18.6 - 20.0 mi

Top 1%
×5stories
+64ft-50ft

Overall

354

Males

327

M40-44

327

20M→21M

20.0 - 21.0 mi

Top 1%
×8stories
+106ft-24ft

Overall

332

Males

305

M40-44

305

21M→35K

21.0 - 21.8 mi

Top 0.9%
×7stories
+17ft-86ft

Overall

240

Males

217

M40-44

217

35K→23M

21.8 - 23.0 mi

Top 0.9%
×5stories
+23ft-63ft

Overall

240

Males

216

M40-44

216

23M→24M

23.0 - 24.0 mi

Top 0.9%
×6stories
+12ft-82ft

Overall

228

Males

205

M40-44

205

24M→40K

24.0 - 24.9 mi

Top 1.0%
×1story
+6ft-20ft

Overall

255

Males

232

M40-44

232

40K→25.2M

24.9 - 25.2 mi

Top 0.8%
×1story
+13ft-16ft

Overall

221

Males

202

M40-44

202

25.2M→Finish

25.2 - 26.2 mi

Top 2%
×2stories
+22ft-21ft

Overall

583

Males

554

M40-44

554

Passing Analysis

Category:
Athletes Passed
306
Passed By
79
Net Change
+227
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#664
5K → 10K2536-11#664#675
10K → 15K1916+3#675#672
15K → 20K285+23#672#649
20K → Half71+6#649#643
Half → 25K346+28#643#615
25K → 30K435+38#615#577
30K → 20M290+29#577#548
20M → 21M223+19#548#529
21M → 35K151+14#529#515
35K → 23M300+30#515#485
23M → 24M150+15#485#470
24M → 40K121+11#470#459
40K → 25.2M100+10#459#449
25.2M → Finish175+12#449#437
TOTALS30679+227
📊

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