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BOSTON MARATHON 2023

Joe Masgai

Bib: 3560•M

PA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 6%
Gender (Male)
#0 / 15176
Top 10%
Division (M18-39)
#0 / 5285
Top 24%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:21
Rank: #2540
Start → 5K
20:21 | 6:33/mi
10K· 6.21 mi
40:27
Rank: #2560 (-20)
5K → 10K
20:06 | 6:28/mi
15K· 9.32 mi
1:00:37
Rank: #2542 (+18)
10K → 15K
20:10 | 6:29/mi
20K· 12.43 mi
1:20:46
Rank: #2441 (+101)
15K → 20K
20:09 | 6:29/mi
Half· 13.11 mi
1:25:08
Rank: #2422 (+19)
20K → Half
4:22 | 6:24/mi
25K· 15.53 mi
1:40:43
Rank: #2324 (+98)
Half → 25K
15:35 | 6:26/mi
30K· 18.64 mi
2:00:45
Rank: #2099 (+225)
25K → 30K
20:02 | 6:27/mi
20M
2:09:37
Rank: #2043 (+56)
30K → 20M
8:52 | 6:31/mi
21M
2:16:08
Rank: #1922 (+121)
20M → 21M
6:31 | 6:31/mi
35K· 21.75 mi
2:20:54
Rank: #1909 (+13)
21M → 35K
4:46 | 6:22/mi
23M
2:29:06
Rank: #1858 (+51)
35K → 23M
8:12 | 6:33/mi
24M
2:35:20
Rank: #1794 (+64)
23M → 24M
6:14 | 6:14/mi
40K· 24.85 mi
2:40:43
Rank: #1732 (+62)
24M → 40K
5:23 | 6:18/mi
25.2M
2:42:56
Rank: #1688 (+44)
40K → 25.2M
2:13 | 6:26/mi
Finish· 26.22 mi
2:49:03
Rank: #1620 (+68)
25.2M → Finish
6:07 | 6:00/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:25:08
Pace6:30 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:23:55
Pace6:24 /mi
📊Negative Split: 1.4% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:5220:216:3320:21
6:33
-
10K
6.21 mi10:41:5840:276:3120:06
6:28
-0:05
15K
9.32 mi11:02:081:00:376:3020:10
6:29
+0:01
20K
12.43 mi11:22:171:20:466:3020:09
6:29
0:00
Half
13.11 mi11:26:391:25:086:304:22
6:24
-0:05
25K
15.53 mi11:42:141:40:436:2915:35
6:26
+0:02
30K
18.64 mi12:02:162:00:456:2920:02
6:27
+0:01
20M
20.00 mi12:11:082:09:376:298:52
6:31
+0:04
21M
21.00 mi12:17:392:16:086:296:31
6:31
0:00
35K
21.75 mi12:22:252:20:546:294:46
6:22
-0:09
23M
23.00 mi12:30:372:29:066:298:12
6:33
+0:11
24M
24.00 mi12:36:512:35:206:286:14
6:14
-0:19
40K
24.85 mi12:42:142:40:436:285:23
6:18
+0:04
25.2M
25.20 mi12:44:272:42:566:282:13
6:26
+0:08
Finish
26.22 mi12:50:342:49:036:276:07
6:00
-0:26

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

6:00 /mi

Average Pace

6:27 /mi

Slowest Pace

6:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

12:21

7% of race

Time at Steady Pace

2:36:42

93% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:27 /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 mi10:21:5220:216:3320:21
6:33
#2540
10K
6.21 mi10:41:5840:276:3120:06
6:28
#2560
15K
9.32 mi11:02:081:00:376:3020:10
6:29
#2542
20K
12.43 mi11:22:171:20:466:3020:09
6:29
#2441
Half
13.11 mi11:26:391:25:086:304:22
6:24
#2422
25K
15.53 mi11:42:141:40:436:2915:35
6:26
#2324
30K
18.64 mi12:02:162:00:456:2920:02
6:27
#2099
20M
20.00 mi12:11:082:09:376:298:52
6:31
#2043
21M
21.00 mi12:17:392:16:086:296:31
6:31
#1922
35K
21.75 mi12:22:252:20:546:294:46
6:22
#1909
23M
23.00 mi12:30:372:29:066:298:12
6:33
#1858
24M
24.00 mi12:36:512:35:206:286:14
6:14
#1794
40K
24.85 mi12:42:142:40:436:285:23
6:18
#1732
25.2M
25.20 mi12:44:272:42:566:282:13
6:26
#1688
Finish
26.22 mi12:50:342:49:036:276:07
6:00
#1620
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2540242324232571(Top 10%)2466(Top 16%)2466(Top 47%)
10K6.21 mi3.10 mi2560-202441-182441-182601(Top 10%)2487(Top 16%)2487(Top 47%)
15K9.32 mi3.11 mi2542+182429+122429+122571(Top 10%)2466(Top 16%)2466(Top 47%)
20K12.43 mi3.11 mi2441+1012338+912338+912195(Top 8%)2106(Top 14%)2106(Top 40%)
Half13.11 mi0.68 mi2422+192321+172321+172183(Top 8%)2093(Top 14%)2093(Top 40%)
25K15.53 mi2.42 mi2324+982229+922229+921821(Top 7%)1744(Top 11%)1744(Top 33%)
30K18.64 mi3.11 mi2099+2252013+2162013+2161373(Top 5%)1315(Top 9%)1315(Top 25%)
20M20.00 mi1.36 mi2043+561958+551958+551505(Top 6%)1433(Top 9%)1433(Top 27%)
21M21.00 mi1.00 mi1922+1211839+1191839+119694(Top 3%)653(Top 4%)653(Top 12%)
35K21.75 mi0.75 mi1909+131828+111828+111826(Top 7%)1732(Top 11%)1732(Top 33%)
23M23.00 mi1.25 mi1858+511778+501778+501599(Top 6%)1519(Top 10%)1519(Top 29%)
24M24.00 mi1.00 mi1794+641715+631715+631130(Top 4%)1071(Top 7%)1071(Top 20%)
40K24.85 mi0.85 mi1732+621656+591656+59898(Top 3%)851(Top 6%)851(Top 16%)
25.2M25.20 mi0.35 mi1688+441613+431613+43418(Top 2%)396(Top 3%)396(Top 7%)
Finish26.22 mi1.02 mi1620+681548+651548+65739(Top 3%)707(Top 5%)707(Top 13%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 10%
×21stories
+97ft-345ft

Overall

2571

Males

2466

M18-39

2466

5K→10K

3.1 - 6.2 mi

Top 10%
×5stories
+79ft-138ft

Overall

2601

Males

2487

M18-39

2487

10K→15K

6.2 - 9.3 mi

Top 10%
×3stories
+67ft-78ft

Overall

2571

Males

2466

M18-39

2466

15K→20K

9.3 - 12.4 mi

Top 8%
×5stories
+106ft-86ft

Overall

2195

Males

2106

M18-39

2106

20K→Half

12.4 - 13.1 mi

Top 8%
×2stories
+19ft-37ft

Overall

2183

Males

2093

M18-39

2093

Half→25K

13.1 - 15.5 mi

Top 7%
×4stories
+66ft-88ft

Overall

1821

Males

1744

M18-39

1744

25K→30K

15.5 - 18.6 mi

Top 5%
×9stories
+181ft-148ft

Overall

1373

Males

1315

M18-39

1315

30K→20M

18.6 - 20.0 mi

Top 6%
×5stories
+64ft-50ft

Overall

1505

Males

1433

M18-39

1433

20M→21M

20.0 - 21.0 mi

Top 3%
×8stories
+106ft-24ft

Overall

694

Males

653

M18-39

653

21M→35K

21.0 - 21.8 mi

Top 7%
×7stories
+17ft-86ft

Overall

1826

Males

1732

M18-39

1732

35K→23M

21.8 - 23.0 mi

Top 6%
×5stories
+23ft-63ft

Overall

1599

Males

1519

M18-39

1519

23M→24M

23.0 - 24.0 mi

Top 4%
×6stories
+12ft-82ft

Overall

1130

Males

1071

M18-39

1071

24M→40K

24.0 - 24.9 mi

Top 3%
×1story
+6ft-20ft

Overall

898

Males

851

M18-39

851

40K→25.2M

24.9 - 25.2 mi

Top 2%
×1story
+13ft-16ft

Overall

418

Males

396

M18-39

396

25.2M→Finish

25.2 - 26.2 mi

Top 3%
×2stories
+22ft-21ft

Overall

739

Males

707

M18-39

707

Passing Analysis

Category:
Athletes Passed
1211
Passed By
291
Net Change
+920
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2540
5K → 10K129149-20#2540#2560
10K → 15K8264+18#2560#2542
15K → 20K12322+101#2542#2441
20K → Half223+19#2441#2422
Half → 25K10810+98#2422#2324
25K → 30K2305+225#2324#2099
30K → 20M6610+56#2099#2043
20M → 21M1221+121#2043#1922
21M → 35K2411+13#1922#1909
35K → 23M576+51#1909#1858
23M → 24M684+64#1858#1794
24M → 40K631+62#1794#1732
40K → 25.2M451+44#1732#1688
25.2M → Finish724+68#1688#1620
TOTALS1211291+920
📊

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