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BOSTON MARATHON 2023

John Mcguire

Bib: 10016•M

NC

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

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:05/mi
25:06
↑ 97↓ 3451.5%
10K· 6.21 mi
7:40/mi
48:54
↑ 79↓ 1380.4%
15K· 9.32 mi
7:45/mi
1:13:00
↑ 67↓ 78
20K· 12.43 mi
7:36/mi
1:36:36
↑ 106↓ 860.1%
Half· 13.11 mi
7:37/mi
1:41:48
↑ 19↓ 370.5%
25K· 15.53 mi
7:48/mi
2:00:43
↑ 66↓ 880.2%
30K· 18.64 mi
8:07/mi
2:25:57
↑ 181↓ 1480.2%
20M
9:08/mi
2:38:21
↑ 64↓ 500.2%
21M
9:08/mi
2:47:29
↑ 106↓ 241.6%
35K· 21.75 mi
8:43/mi
2:54:00
↑ 17↓ 861.7%
23M
8:42/mi
3:04:53
↑ 23↓ 630.6%
24M
9:05/mi
3:13:58
↓ 821.3%
40K· 24.85 mi
9:34/mi
3:22:09
↓ 200.3%
25.2M
10:12/mi
3:25:40
↑ 13↓ 160.2%
Finish· 26.22 mi
9:58/mi
3:35:49
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:48
Pace7:46 /mi
2nd Half
Distance13.11 mi
Time1:54:01
Pace8:42 /mi
📊Positive Split: 12.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:0725:068:0525:06
8:05
-
10K
6.21 mi11:15:5548:547:5223:48
7:40
-0:25
15K
9.32 mi11:40:011:13:007:5024:06
7:45
+0:05
20K
12.43 mi12:03:371:36:367:4623:36
7:36
-0:09
Half
13.11 mi12:08:491:41:487:465:12
7:37
+0:01
25K
15.53 mi12:27:442:00:437:4618:55
7:48
+0:11
30K
18.64 mi12:52:582:25:577:5025:14
8:07
+0:19
20M
20.00 mi13:05:222:38:217:5512:24
9:08
+1:01
21M
21.00 mi13:14:302:47:297:599:08
9:08
0:00
35K
21.75 mi13:21:012:54:008:006:31
8:43
-0:25
23M
23.00 mi13:31:543:04:538:0210:53
8:42
-0:01
24M
24.00 mi13:40:593:13:588:059:05
9:05
+0:23
40K
24.85 mi13:49:103:22:098:088:11
9:34
+0:29
25.2M
25.20 mi13:52:413:25:408:103:31
10:12
+0:38
Finish
26.22 mi14:02:503:35:498:1410:09
9:58
-0:14

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

7:36 /mi

Average Pace

8:14 /mi

Slowest Pace

10:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:25:57

68% of race

Time at Steady Pace

26:29

12% of race

Time at Slower Pace

43:23

20% of race

Average Pace: 8:14 /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 mi10:52:0725:068:0525:06
8:05
#14541
10K
6.21 mi11:15:5548:547:5223:48
7:40
#13341
15K
9.32 mi11:40:011:13:007:5024:06
7:45
#12976
20K
12.43 mi12:03:371:36:367:4623:36
7:36
#12146
Half
13.11 mi12:08:491:41:487:465:12
7:37
#12098
25K
15.53 mi12:27:442:00:437:4618:55
7:48
#11921
30K
18.64 mi12:52:582:25:577:5025:14
8:07
#11849
20M
20.00 mi13:05:222:38:217:5512:24
9:08
#12365
21M
21.00 mi13:14:302:47:297:599:08
9:08
#12444
35K
21.75 mi13:21:012:54:008:006:31
8:43
#12635
23M
23.00 mi13:31:543:04:538:0210:53
8:42
#12739
24M
24.00 mi13:40:593:13:588:059:05
9:05
#12990
40K
24.85 mi13:49:103:22:098:088:11
9:34
#13249
25.2M
25.20 mi13:52:413:25:408:103:31
10:12
#13340
Finish
26.22 mi14:02:503:35:498:1410:09
9:58
#13857
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi14541101691016912362(Top 46%)9236(Top 61%)9236(Top 412%)
10K6.21 mi3.10 mi13341+12009672+4979672+49711878(Top 45%)9067(Top 60%)9067(Top 405%)
15K9.32 mi3.11 mi12976+3659515+1579515+15712362(Top 46%)9236(Top 61%)9236(Top 412%)
20K12.43 mi3.11 mi12146+8309122+3939122+39310066(Top 38%)8112(Top 53%)8112(Top 362%)
Half13.11 mi0.68 mi12098+489106+169106+1611205(Top 42%)8737(Top 58%)8737(Top 390%)
25K15.53 mi2.42 mi11921+1779012+949012+9411102(Top 42%)8557(Top 56%)8557(Top 382%)
30K18.64 mi3.11 mi11849+728939+738939+7311797(Top 44%)8725(Top 57%)8725(Top 389%)
20M20.00 mi1.36 mi12365-5169152-2139152-21317225(Top 65%)10903(Top 72%)10903(Top 487%)
21M21.00 mi1.00 mi12444-799164-129164-1214099(Top 53%)9539(Top 63%)9539(Top 426%)
35K21.75 mi0.75 mi12635-1919231-679231-6716420(Top 62%)10437(Top 69%)10437(Top 466%)
23M23.00 mi1.25 mi12739-1049248-179248-1714314(Top 54%)9493(Top 63%)9493(Top 424%)
24M24.00 mi1.00 mi12990-2519334-869334-8617576(Top 66%)10883(Top 72%)10883(Top 486%)
40K24.85 mi0.85 mi13249-2599426-929426-9218554(Top 70%)11276(Top 74%)11276(Top 503%)
25.2M25.20 mi0.35 mi13340-919446-209446-2018054(Top 68%)11037(Top 73%)11037(Top 493%)
Finish26.22 mi1.02 mi13857-5179635-1899635-18921638(Top 81%)12683(Top 84%)12683(Top 566%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 46%
×21story building
+97ft-345ft

Overall

12362

Males

9236

M40-44

9236

5K→10K

3.1 - 6.2 mi

Top 45%
×5story building
+79ft-138ft

Overall

11878

Males

9067

M40-44

9067

10K→15K

6.2 - 9.3 mi

Top 46%
×3story building
+67ft-78ft

Overall

12362

Males

9236

M40-44

9236

15K→20K

9.3 - 12.4 mi

Top 38%
×5story building
+106ft-86ft

Overall

10066

Males

8112

M40-44

8112

20K→Half

12.4 - 13.1 mi

Top 42%
×2story building
+19ft-37ft

Overall

11205

Males

8737

M40-44

8737

Half→25K

13.1 - 15.5 mi

Top 42%
×4story building
+66ft-88ft

Overall

11102

Males

8557

M40-44

8557

25K→30K

15.5 - 18.6 mi

Top 44%
×9story building
+181ft-148ft

Overall

11797

Males

8725

M40-44

8725

30K→20M

18.6 - 20.0 mi

Top 65%
×5story building
+64ft-50ft

Overall

17225

Males

10903

M40-44

10903

20M→21M

20.0 - 21.0 mi

Top 53%
×8story building
+106ft-24ft

Overall

14099

Males

9539

M40-44

9539

21M→35K

21.0 - 21.8 mi

Top 62%
×7story building
+17ft-86ft

Overall

16420

Males

10437

M40-44

10437

35K→23M

21.8 - 23.0 mi

Top 54%
×5story building
+23ft-63ft

Overall

14314

Males

9493

M40-44

9493

23M→24M

23.0 - 24.0 mi

Top 66%
×6story building
+12ft-82ft

Overall

17576

Males

10883

M40-44

10883

24M→40K

24.0 - 24.9 mi

Top 70%
×1story
+6ft-20ft

Overall

18554

Males

11276

M40-44

11276

40K→25.2M

24.9 - 25.2 mi

Top 68%
×1story
+13ft-16ft

Overall

18054

Males

11037

M40-44

11037

25.2M→Finish

25.2 - 26.2 mi

Top 81%
×2story building
+22ft-21ft

Overall

21638

Males

12683

M40-44

12683

Passing Analysis

Category:
Athletes Passed
3234
Passed By
2550
Net Change
+684
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14541
5K → 10K123939+1200#14541#13341
10K → 15K43368+365#13341#12976
15K → 20K8355+830#12976#12146
20K → Half568+48#12146#12098
Half → 25K22245+177#12098#11921
25K → 30K222150+72#11921#11849
30K → 20M23539-516#11849#12365
20M → 21M71150-79#12365#12444
21M → 35K13204-191#12444#12635
35K → 23M58162-104#12635#12739
23M → 24M20271-251#12739#12990
24M → 40K19278-259#12990#13249
40K → 25.2M16107-91#13249#13340
25.2M → Finish7524-517#13340#13857
TOTALS32342550+684
📊

Passing Visuals

Category:
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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