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BOSTON MARATHON 2023

Jonathan Mccarron

Bib: 31178•M

CT

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Division (M18-39)
#0 / 5285
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
8:32/mi
26:30
↑ 97↓ 3451.5%
10K· 6.21 mi
7:23/mi
49:25
↑ 79↓ 1380.4%
15K· 9.32 mi
6:58/mi
1:11:05
↑ 67↓ 78
20K· 12.43 mi
7:10/mi
1:33:21
↑ 106↓ 860.1%
Half· 13.11 mi
7:11/mi
1:38:15
↑ 19↓ 370.5%
25K· 15.53 mi
7:23/mi
1:56:08
↑ 66↓ 880.2%
30K· 18.64 mi
9:12/mi
2:24:44
↑ 181↓ 1480.2%
20M
10:10/mi
2:38:33
↑ 64↓ 500.2%
21M
12:14/mi
2:50:47
↑ 106↓ 241.6%
35K· 21.75 mi
9:39/mi
2:58:00
↑ 17↓ 861.7%
23M
10:17/mi
3:10:53
↑ 23↓ 630.6%
24M
10:08/mi
3:21:01
↓ 821.3%
40K· 24.85 mi
10:05/mi
3:29:38
↓ 200.3%
25.2M
11:21/mi
3:33:33
↑ 13↓ 160.2%
Finish· 26.22 mi
10:06/mi
3:43:51
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:15
Pace7:30 /mi
2nd Half
Distance13.11 mi
Time2:05:36
Pace9:35 /mi
📊Positive Split: 27.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:5426:308:3226:30
8:32
-
10K
6.21 mi12:10:4949:257:5722:55
7:23
-1:09
15K
9.32 mi12:32:291:11:057:3821:40
6:58
-0:25
20K
12.43 mi12:54:451:33:217:3122:16
7:10
+0:12
Half
13.11 mi12:59:391:38:157:304:54
7:11
+0:01
25K
15.53 mi13:17:321:56:087:2917:53
7:23
+0:12
30K
18.64 mi13:46:082:24:447:4628:36
9:12
+1:49
20M
20.00 mi13:59:572:38:337:5613:49
10:10
+0:58
21M
21.00 mi14:12:112:50:478:0812:14
12:14
+2:04
35K
21.75 mi14:19:242:58:008:117:13
9:39
-2:35
23M
23.00 mi14:32:173:10:538:1812:53
10:17
+0:38
24M
24.00 mi14:42:253:21:018:2310:08
10:08
-0:09
40K
24.85 mi14:51:023:29:388:268:37
10:05
-0:03
25.2M
25.20 mi14:54:573:33:338:283:55
11:21
+1:16
Finish
26.22 mi15:05:153:43:518:3310:18
10:06
-1:15

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

6:58 /mi

Average Pace

8:33 /mi

Slowest Pace

12:14 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:56:08

52% of race

Time at Steady Pace

1:31:34

41% of race

Time at Slower Pace

16:09

7% of race

Average Pace: 8:32 /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 mi11:47:5426:308:3226:30
8:32
#17739
10K
6.21 mi12:10:4949:257:5722:55
7:23
#14000
15K
9.32 mi12:32:291:11:057:3821:40
6:58
#11160
20K
12.43 mi12:54:451:33:217:3122:16
7:10
#9933
Half
13.11 mi12:59:391:38:157:304:54
7:11
#9799
25K
15.53 mi13:17:321:56:087:2917:53
7:23
#9446
30K
18.64 mi13:46:082:24:447:4628:36
9:12
#11285
20M
20.00 mi13:59:572:38:337:5613:49
10:10
#12442
21M
21.00 mi14:12:112:50:478:0812:14
12:14
#13712
35K
21.75 mi14:19:242:58:008:117:13
9:39
#14046
23M
23.00 mi14:32:173:10:538:1812:53
10:17
#14658
24M
24.00 mi14:42:253:21:018:2310:08
10:08
#15057
40K
24.85 mi14:51:023:29:388:268:37
10:05
#15354
25.2M
25.20 mi14:54:573:33:338:283:55
11:21
#15512
Finish
26.22 mi15:05:153:43:518:3310:18
10:06
#15889
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1773911321113216403(Top 24%)5778(Top 38%)5778(Top 109%)
10K6.21 mi3.10 mi14000+37399941+13809941+13809431(Top 35%)7821(Top 52%)7821(Top 148%)
15K9.32 mi3.11 mi11160+28408727+12148727+12146403(Top 24%)5778(Top 38%)5778(Top 109%)
20K12.43 mi3.11 mi9933+12278111+6168111+6166905(Top 26%)6139(Top 40%)6139(Top 116%)
Half13.11 mi0.68 mi9799+1348037+748037+747763(Top 29%)6770(Top 45%)6770(Top 128%)
25K15.53 mi2.42 mi9446+3537808+2297808+2297822(Top 29%)6692(Top 44%)6692(Top 127%)
30K18.64 mi3.11 mi11285-18398690-8828690-88218182(Top 68%)11404(Top 75%)11404(Top 216%)
20M20.00 mi1.36 mi12442-11579191-5019191-50120913(Top 79%)12526(Top 83%)12526(Top 237%)
21M21.00 mi1.00 mi13712-12709697-5069697-50623085(Top 87%)13469(Top 89%)13469(Top 255%)
35K21.75 mi0.75 mi14046-3349801-1049801-10420267(Top 76%)12141(Top 80%)12141(Top 230%)
23M23.00 mi1.25 mi14658-61210015-21410015-21420798(Top 78%)12366(Top 81%)12366(Top 234%)
24M24.00 mi1.00 mi15057-39910153-13810153-13821142(Top 79%)12483(Top 82%)12483(Top 236%)
40K24.85 mi0.85 mi15354-29710239-8610239-8620163(Top 76%)11992(Top 79%)11992(Top 227%)
25.2M25.20 mi0.35 mi15512-15810291-5210291-5221201(Top 80%)12467(Top 82%)12467(Top 236%)
Finish26.22 mi1.02 mi15889-37710446-15510446-15522031(Top 83%)12874(Top 85%)12874(Top 244%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 24%
×21story building
+97ft-345ft

Overall

6403

Males

5778

M18-39

5778

5K→10K

3.1 - 6.2 mi

Top 35%
×5story building
+79ft-138ft

Overall

9431

Males

7821

M18-39

7821

10K→15K

6.2 - 9.3 mi

Top 24%
×3story building
+67ft-78ft

Overall

6403

Males

5778

M18-39

5778

15K→20K

9.3 - 12.4 mi

Top 26%
×5story building
+106ft-86ft

Overall

6905

Males

6139

M18-39

6139

20K→Half

12.4 - 13.1 mi

Top 29%
×2story building
+19ft-37ft

Overall

7763

Males

6770

M18-39

6770

Half→25K

13.1 - 15.5 mi

Top 29%
×4story building
+66ft-88ft

Overall

7822

Males

6692

M18-39

6692

25K→30K

15.5 - 18.6 mi

Top 68%
×9story building
+181ft-148ft

Overall

18182

Males

11404

M18-39

11404

30K→20M

18.6 - 20.0 mi

Top 79%
×5story building
+64ft-50ft

Overall

20913

Males

12526

M18-39

12526

20M→21M

20.0 - 21.0 mi

Top 87%
×8story building
+106ft-24ft

Overall

23085

Males

13469

M18-39

13469

21M→35K

21.0 - 21.8 mi

Top 76%
×7story building
+17ft-86ft

Overall

20267

Males

12141

M18-39

12141

35K→23M

21.8 - 23.0 mi

Top 78%
×5story building
+23ft-63ft

Overall

20798

Males

12366

M18-39

12366

23M→24M

23.0 - 24.0 mi

Top 79%
×6story building
+12ft-82ft

Overall

21142

Males

12483

M18-39

12483

24M→40K

24.0 - 24.9 mi

Top 76%
×1story
+6ft-20ft

Overall

20163

Males

11992

M18-39

11992

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1story
+13ft-16ft

Overall

21201

Males

12467

M18-39

12467

25.2M→Finish

25.2 - 26.2 mi

Top 83%
×2story building
+22ft-21ft

Overall

22031

Males

12874

M18-39

12874

Passing Analysis

Category:
Athletes Passed
8383*
Passed By
6532
Net Change
+1850
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17739
5K → 10K37401+3739#17739#14000
10K → 15K28400+2840#14000#11160
15K → 20K1228*1+1227#11160#9933
20K → Half1340+134#9933#9799
Half → 25K3596+353#9799#9446
25K → 30K71845-1839#9446#11285
30K → 20M51162-1157#11285#12442
20M → 21M11271-1270#12442#13712
21M → 35K7341-334#13712#14046
35K → 23M11623-612#14046#14658
23M → 24M14413-399#14658#15057
24M → 40K19316-297#15057#15354
40K → 25.2M9167-158#15354#15512
25.2M → Finish9386-377#15512#15889
TOTALS8383*6532+1850

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

📊

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