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BOSTON MARATHON 2023

Jeffrey Ahlman

Bib: 5949•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 20%
Gender (Male)
#0 / 15176
Top 32%
Masters (Masters Men)
#0 / 9891
Top 17%
Division (M40-44)
#0 / 2241
Top 41%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:18
Rank: #7354
Start → 5K
22:18 | 7:11/mi
10K· 6.21 mi
44:37
Rank: #7626 (-272)
5K → 10K
22:19 | 7:11/mi
15K· 9.32 mi
1:06:45
Rank: #7491 (+135)
10K → 15K
22:08 | 7:07/mi
20K· 12.43 mi
1:28:59
Rank: #7270 (+221)
15K → 20K
22:14 | 7:09/mi
Half· 13.11 mi
1:33:50
Rank: #7276 (-6)
20K → Half
4:51 | 7:07/mi
25K· 15.53 mi
1:51:06
Rank: #7066 (+210)
Half → 25K
17:16 | 7:07/mi
30K· 18.64 mi
2:13:31
Rank: #6763 (+303)
25K → 30K
22:25 | 7:13/mi
20M
2:23:16
Rank: #6597 (+166)
30K → 20M
9:45 | 7:10/mi
21M
2:30:46
Rank: #6451 (+146)
20M → 21M
7:30 | 7:30/mi
35K· 21.75 mi
2:35:49
Rank: #6338 (+113)
21M → 35K
5:03 | 6:45/mi
23M
2:44:16
Rank: #6054 (+284)
35K → 23M
8:27 | 6:45/mi
24M
2:50:48
Rank: #5825 (+229)
23M → 24M
6:32 | 6:32/mi
40K· 24.85 mi
2:56:26
Rank: #5626 (+199)
24M → 40K
5:38 | 6:35/mi
25.2M
2:58:50
Rank: #5541 (+85)
40K → 25.2M
2:24 | 6:58/mi
Finish· 26.22 mi
3:04:55
Rank: #5239 (+302)
25.2M → Finish
6:05 | 5:58/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:33:50
Pace7:09 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:31:05
Pace6:57 /mi
📊Negative Split: 2.9% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:5822:187:1122:18
7:11
-
10K
6.21 mi10:47:1744:377:1122:19
7:11
0:00
15K
9.32 mi11:09:251:06:457:1022:08
7:07
-0:04
20K
12.43 mi11:31:391:28:597:1022:14
7:09
+0:02
Half
13.11 mi11:36:301:33:507:094:51
7:07
-0:02
25K
15.53 mi11:53:461:51:067:0917:16
7:07
0:00
30K
18.64 mi12:16:112:13:317:1022:25
7:13
+0:06
20M
20.00 mi12:25:562:23:167:109:45
7:10
-0:03
21M
21.00 mi12:33:262:30:467:117:30
7:30
+0:20
35K
21.75 mi12:38:292:35:497:105:03
6:45
-0:45
23M
23.00 mi12:46:562:44:167:098:27
6:45
0:00
24M
24.00 mi12:53:282:50:487:076:32
6:32
-0:13
40K
24.85 mi12:59:062:56:267:065:38
6:35
+0:03
25.2M
25.20 mi13:01:302:58:507:062:24
6:58
+0:23
Finish
26.22 mi13:07:353:04:557:036:05
5:58
-1:00

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

5:58 /mi

Average Pace

7:03 /mi

Slowest Pace

7:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

31:45

17% of race

Time at Steady Pace

2:25:40

79% of race

Time at Slower Pace

7:30

4% of race

Average Pace: 7:03 /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 mi10:24:5822:187:1122:18
7:11
#7354
10K
6.21 mi10:47:1744:377:1122:19
7:11
#7626
15K
9.32 mi11:09:251:06:457:1022:08
7:07
#7491
20K
12.43 mi11:31:391:28:597:1022:14
7:09
#7270
Half
13.11 mi11:36:301:33:507:094:51
7:07
#7276
25K
15.53 mi11:53:461:51:067:0917:16
7:07
#7066
30K
18.64 mi12:16:112:13:317:1022:25
7:13
#6763
20M
20.00 mi12:25:562:23:167:109:45
7:10
#6597
21M
21.00 mi12:33:262:30:467:117:30
7:30
#6451
35K
21.75 mi12:38:292:35:497:105:03
6:45
#6338
23M
23.00 mi12:46:562:44:167:098:27
6:45
#6054
24M
24.00 mi12:53:282:50:487:076:32
6:32
#5825
40K
24.85 mi12:59:062:56:267:065:38
6:35
#5626
25.2M
25.20 mi13:01:302:58:507:062:24
6:58
#5541
Finish
26.22 mi13:07:353:04:557:036:05
5:58
#5239
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi7354654165417287(Top 27%)6442(Top 42%)6442(Top 287%)
10K6.21 mi3.10 mi7626-2726722-1816722-1817963(Top 30%)6910(Top 46%)6910(Top 308%)
15K9.32 mi3.11 mi7491+1356614+1086614+1087287(Top 27%)6442(Top 42%)6442(Top 287%)
20K12.43 mi3.11 mi7270+2216442+1726442+1726830(Top 26%)6083(Top 40%)6083(Top 271%)
Half13.11 mi0.68 mi7276-66446-46446-47140(Top 27%)6309(Top 42%)6309(Top 282%)
25K15.53 mi2.42 mi7066+2106282+1646282+1646213(Top 23%)5590(Top 37%)5590(Top 249%)
30K18.64 mi3.11 mi6763+3036035+2476035+2475569(Top 21%)5049(Top 33%)5049(Top 225%)
20M20.00 mi1.36 mi6597+1665898+1375898+1374986(Top 19%)4532(Top 30%)4532(Top 202%)
21M21.00 mi1.00 mi6451+1465774+1245774+1244579(Top 17%)4166(Top 27%)4166(Top 186%)
35K21.75 mi0.75 mi6338+1135693+815693+813911(Top 15%)3605(Top 24%)3605(Top 161%)
23M23.00 mi1.25 mi6054+2845462+2315462+2312406(Top 9%)2263(Top 15%)2263(Top 101%)
24M24.00 mi1.00 mi5825+2295277+1855277+1852266(Top 9%)2124(Top 14%)2124(Top 95%)
40K24.85 mi0.85 mi5626+1995114+1635114+1631902(Top 7%)1793(Top 12%)1793(Top 80%)
25.2M25.20 mi0.35 mi5541+855044+705044+701681(Top 6%)1587(Top 10%)1587(Top 71%)
Finish26.22 mi1.02 mi5239+3024792+2524792+252672(Top 3%)641(Top 4%)641(Top 29%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 27%
×21stories
+97ft-345ft

Overall

7287

Males

6442

M40-44

6442

5K→10K

3.1 - 6.2 mi

Top 30%
×5stories
+79ft-138ft

Overall

7963

Males

6910

M40-44

6910

10K→15K

6.2 - 9.3 mi

Top 27%
×3stories
+67ft-78ft

Overall

7287

Males

6442

M40-44

6442

15K→20K

9.3 - 12.4 mi

Top 26%
×5stories
+106ft-86ft

Overall

6830

Males

6083

M40-44

6083

20K→Half

12.4 - 13.1 mi

Top 27%
×2stories
+19ft-37ft

Overall

7140

Males

6309

M40-44

6309

Half→25K

13.1 - 15.5 mi

Top 23%
×4stories
+66ft-88ft

Overall

6213

Males

5590

M40-44

5590

25K→30K

15.5 - 18.6 mi

Top 21%
×9stories
+181ft-148ft

Overall

5569

Males

5049

M40-44

5049

30K→20M

18.6 - 20.0 mi

Top 19%
×5stories
+64ft-50ft

Overall

4986

Males

4532

M40-44

4532

20M→21M

20.0 - 21.0 mi

Top 17%
×8stories
+106ft-24ft

Overall

4579

Males

4166

M40-44

4166

21M→35K

21.0 - 21.8 mi

Top 15%
×7stories
+17ft-86ft

Overall

3911

Males

3605

M40-44

3605

35K→23M

21.8 - 23.0 mi

Top 9%
×5stories
+23ft-63ft

Overall

2406

Males

2263

M40-44

2263

23M→24M

23.0 - 24.0 mi

Top 9%
×6stories
+12ft-82ft

Overall

2266

Males

2124

M40-44

2124

24M→40K

24.0 - 24.9 mi

Top 7%
×1story
+6ft-20ft

Overall

1902

Males

1793

M40-44

1793

40K→25.2M

24.9 - 25.2 mi

Top 6%
×1story
+13ft-16ft

Overall

1681

Males

1587

M40-44

1587

25.2M→Finish

25.2 - 26.2 mi

Top 3%
×2stories
+22ft-21ft

Overall

672

Males

641

M40-44

641

Passing Analysis

Category:
Athletes Passed
2659
Passed By
544
Net Change
+2115
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7354
5K → 10K123395-272#7354#7626
10K → 15K20570+135#7626#7491
15K → 20K24423+221#7491#7270
20K → Half1824-6#7270#7276
Half → 25K22111+210#7276#7066
25K → 30K31310+303#7066#6763
30K → 20M1693+166#6763#6597
20M → 21M1537+146#6597#6451
21M → 35K1130+113#6451#6338
35K → 23M2840+284#6338#6054
23M → 24M2301+229#6054#5825
24M → 40K1990+199#5825#5626
40K → 25.2M850+85#5626#5541
25.2M → Finish3020+302#5541#5239
TOTALS2659544+2115
📊

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