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BOSTON MARATHON 2023

Justin Moomaw

Bib: 8359•M

FL

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 37%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 40%
Division (M40-44)
#0 / 2241
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:04
Rank: #9024
Start → 5K
23:04 | 7:25/mi
10K· 6.21 mi
46:10
Rank: #9411 (-387)
5K → 10K
23:06 | 7:26/mi
15K· 9.32 mi
1:09:38
Rank: #9784 (-373)
10K → 15K
23:28 | 7:33/mi
20K· 12.43 mi
1:33:32
Rank: #10057 (-273)
15K → 20K
23:54 | 7:42/mi
Half· 13.11 mi
1:38:49
Rank: #10172 (-115)
20K → Half
5:17 | 7:45/mi
25K· 15.53 mi
1:58:00
Rank: #10446 (-274)
Half → 25K
19:11 | 7:55/mi
30K· 18.64 mi
2:22:41
Rank: #10389 (+57)
25K → 30K
24:41 | 7:57/mi
20M
2:33:29
Rank: #10348 (+41)
30K → 20M
10:48 | 7:57/mi
21M
2:41:39
Rank: #10194 (+154)
20M → 21M
8:10 | 8:10/mi
35K· 21.75 mi
2:47:25
Rank: #10170 (+24)
21M → 35K
5:46 | 7:42/mi
23M
2:57:21
Rank: #10099 (+71)
35K → 23M
9:56 | 7:56/mi
24M
3:05:06
Rank: #10039 (+60)
23M → 24M
7:45 | 7:45/mi
40K· 24.85 mi
3:11:45
Rank: #9953 (+86)
24M → 40K
6:39 | 7:47/mi
25.2M
3:14:36
Rank: #9896 (+57)
40K → 25.2M
2:51 | 8:16/mi
Finish· 26.22 mi
3:22:07
Rank: #9761 (+135)
25.2M → Finish
7:31 | 7:23/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:49
Pace7:32 /mi
2nd Half
Distance13.11 mi
Time1:43:18
Pace7:53 /mi
📊Positive Split: 4.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:1123:047:2523:04
7:25
-
10K
6.21 mi11:11:1746:107:2623:06
7:26
+0:01
15K
9.32 mi11:34:451:09:387:2823:28
7:33
+0:07
20K
12.43 mi11:58:391:33:327:3223:54
7:42
+0:09
Half
13.11 mi12:03:561:38:497:325:17
7:45
+0:03
25K
15.53 mi12:23:071:58:007:3619:11
7:55
+0:10
30K
18.64 mi12:47:482:22:417:3924:41
7:57
+0:02
20M
20.00 mi12:58:362:33:297:4010:48
7:57
0:00
21M
21.00 mi13:06:462:41:397:428:10
8:10
+0:13
35K
21.75 mi13:12:322:47:257:425:46
7:42
-0:28
23M
23.00 mi13:22:282:57:217:439:56
7:56
+0:14
24M
24.00 mi13:30:133:05:067:437:45
7:45
-0:11
40K
24.85 mi13:36:523:11:457:436:39
7:47
+0:02
25.2M
25.20 mi13:39:433:14:367:432:51
8:16
+0:29
Finish
26.22 mi13:47:143:22:077:437:31
7:23
-0:53

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

7:23 /mi

Average Pace

7:43 /mi

Slowest Pace

8:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:11:06

95% of race

Time at Steady Pace

11:01

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:43 /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 mi10:48:1123:047:2523:04
7:25
#9024
10K
6.21 mi11:11:1746:107:2623:06
7:26
#9411
15K
9.32 mi11:34:451:09:387:2823:28
7:33
#9784
20K
12.43 mi11:58:391:33:327:3223:54
7:42
#10057
Half
13.11 mi12:03:561:38:497:325:17
7:45
#10172
25K
15.53 mi12:23:071:58:007:3619:11
7:55
#10446
30K
18.64 mi12:47:482:22:417:3924:41
7:57
#10389
20M
20.00 mi12:58:362:33:297:4010:48
7:57
#10348
21M
21.00 mi13:06:462:41:397:428:10
8:10
#10194
35K
21.75 mi13:12:322:47:257:425:46
7:42
#10170
23M
23.00 mi13:22:282:57:217:439:56
7:56
#10099
24M
24.00 mi13:30:133:05:067:437:45
7:45
#10039
40K
24.85 mi13:36:523:11:457:436:39
7:47
#9953
25.2M
25.20 mi13:39:433:14:367:432:51
8:16
#9896
Finish
26.22 mi13:47:143:22:077:437:31
7:23
#9761
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi90247611761110586(Top 40%)8443(Top 56%)8443(Top 377%)
10K6.21 mi3.10 mi9411-3877822-2117822-2119921(Top 37%)8126(Top 54%)8126(Top 363%)
15K9.32 mi3.11 mi9784-3738029-2078029-20710586(Top 40%)8443(Top 56%)8443(Top 377%)
20K12.43 mi3.11 mi10057-2738187-1588187-15810841(Top 41%)8492(Top 56%)8492(Top 379%)
Half13.11 mi0.68 mi10172-1158238-518238-5112161(Top 46%)9115(Top 60%)9115(Top 407%)
25K15.53 mi2.42 mi10446-2748360-1228360-12211987(Top 45%)8897(Top 59%)8897(Top 397%)
30K18.64 mi3.11 mi10389+578278+828278+8210461(Top 39%)8075(Top 53%)8075(Top 360%)
20M20.00 mi1.36 mi10348+418244+348244+349865(Top 37%)7676(Top 51%)7676(Top 343%)
21M21.00 mi1.00 mi10194+1548142+1028142+1028416(Top 32%)6722(Top 44%)6722(Top 300%)
35K21.75 mi0.75 mi10170+248115+278115+279955(Top 37%)7609(Top 50%)7609(Top 340%)
23M23.00 mi1.25 mi10099+718040+758040+759282(Top 35%)7114(Top 47%)7114(Top 317%)
24M24.00 mi1.00 mi10039+607977+637977+639412(Top 35%)7110(Top 47%)7110(Top 317%)
40K24.85 mi0.85 mi9953+867900+777900+778513(Top 32%)6565(Top 43%)6565(Top 293%)
25.2M25.20 mi0.35 mi9896+577857+437857+438065(Top 30%)6225(Top 41%)6225(Top 278%)
Finish26.22 mi1.02 mi9761+1357760+977760+977617(Top 29%)5946(Top 39%)5946(Top 265%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21stories
+97ft-345ft

Overall

10586

Males

8443

M40-44

8443

5K→10K

3.1 - 6.2 mi

Top 37%
×5stories
+79ft-138ft

Overall

9921

Males

8126

M40-44

8126

10K→15K

6.2 - 9.3 mi

Top 40%
×3stories
+67ft-78ft

Overall

10586

Males

8443

M40-44

8443

15K→20K

9.3 - 12.4 mi

Top 41%
×5stories
+106ft-86ft

Overall

10841

Males

8492

M40-44

8492

20K→Half

12.4 - 13.1 mi

Top 46%
×2stories
+19ft-37ft

Overall

12161

Males

9115

M40-44

9115

Half→25K

13.1 - 15.5 mi

Top 45%
×4stories
+66ft-88ft

Overall

11987

Males

8897

M40-44

8897

25K→30K

15.5 - 18.6 mi

Top 39%
×9stories
+181ft-148ft

Overall

10461

Males

8075

M40-44

8075

30K→20M

18.6 - 20.0 mi

Top 37%
×5stories
+64ft-50ft

Overall

9865

Males

7676

M40-44

7676

20M→21M

20.0 - 21.0 mi

Top 32%
×8stories
+106ft-24ft

Overall

8416

Males

6722

M40-44

6722

21M→35K

21.0 - 21.8 mi

Top 37%
×7stories
+17ft-86ft

Overall

9955

Males

7609

M40-44

7609

35K→23M

21.8 - 23.0 mi

Top 35%
×5stories
+23ft-63ft

Overall

9282

Males

7114

M40-44

7114

23M→24M

23.0 - 24.0 mi

Top 35%
×6stories
+12ft-82ft

Overall

9412

Males

7110

M40-44

7110

24M→40K

24.0 - 24.9 mi

Top 32%
×1story
+6ft-20ft

Overall

8513

Males

6565

M40-44

6565

40K→25.2M

24.9 - 25.2 mi

Top 30%
×1story
+13ft-16ft

Overall

8065

Males

6225

M40-44

6225

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2stories
+22ft-21ft

Overall

7617

Males

5946

M40-44

5946

Passing Analysis

Category:
Athletes Passed
1404*
Passed By
2139
Net Change
-737
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9024
5K → 10K131518-387#9024#9411
10K → 15K63436-373#9411#9784
15K → 20K86359-273#9784#10057
20K → Half9123-115#10057#10172
Half → 25K65339-274#10172#10446
25K → 30K191134+57#10446#10389
30K → 20M87*46+41#10389#10348
20M → 21M17420+154#10348#10194
21M → 35K5632+24#10194#10170
35K → 23M12150+71#10170#10099
23M → 24M9837+60#10099#10039
24M → 40K107*21+86#10039#9953
40K → 25.2M636+57#9953#9896
25.2M → Finish153*18+135#9896#9761
TOTALS1404*2139-737

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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