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BOSTON MARATHON 2023

Greg Cantlon

Bib: 11116•M

ON

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 40%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 44%
Division (M45-49)
#0 / 2252
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
7:24/mi
23:00
↑ 97↓ 3451.5%
10K· 6.21 mi
7:29/mi
46:14
↑ 79↓ 1380.4%
15K· 9.32 mi
7:33/mi
1:09:41
↑ 67↓ 78
20K· 12.43 mi
7:56/mi
1:34:21
↑ 106↓ 860.1%
Half· 13.11 mi
7:29/mi
1:39:27
↑ 19↓ 370.5%
25K· 15.53 mi
7:58/mi
1:58:46
↑ 66↓ 880.2%
30K· 18.64 mi
8:06/mi
2:23:56
↑ 181↓ 1480.2%
20M
8:12/mi
2:35:05
↑ 64↓ 500.2%
21M
8:29/mi
2:43:34
↑ 106↓ 241.6%
35K· 21.75 mi
8:01/mi
2:49:34
↑ 17↓ 861.7%
23M
8:12/mi
2:59:50
↑ 23↓ 630.6%
24M
7:34/mi
3:07:24
↓ 821.3%
40K· 24.85 mi
7:43/mi
3:14:00
↓ 200.3%
25.2M
8:30/mi
3:16:56
↑ 13↓ 160.2%
Finish· 26.22 mi
7:43/mi
3:24:48
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:27
Pace7:35 /mi
2nd Half
Distance13.11 mi
Time1:45:21
Pace8:02 /mi
📊Positive Split: 5.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:1523:007:2423:00
7:24
-
10K
6.21 mi11:17:2946:147:2623:14
7:29
+0:05
15K
9.32 mi11:40:561:09:417:2923:27
7:33
+0:04
20K
12.43 mi12:05:361:34:217:3624:40
7:56
+0:23
Half
13.11 mi12:10:421:39:277:355:06
7:29
-0:27
25K
15.53 mi12:30:011:58:467:3919:19
7:58
+0:29
30K
18.64 mi12:55:112:23:567:4325:10
8:06
+0:08
20M
20.00 mi13:06:202:35:057:4511:09
8:12
+0:06
21M
21.00 mi13:14:492:43:347:478:29
8:29
+0:17
35K
21.75 mi13:20:492:49:347:486:00
8:01
-0:28
23M
23.00 mi13:31:052:59:507:4910:16
8:12
+0:11
24M
24.00 mi13:38:393:07:247:497:34
7:34
-0:38
40K
24.85 mi13:45:153:14:007:486:36
7:43
+0:09
25.2M
25.20 mi13:48:113:16:567:492:56
8:30
+0:47
Finish
26.22 mi13:56:033:24:487:497:52
7:43
-0:47

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

7:24 /mi

Average Pace

7:49 /mi

Slowest Pace

8:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:51:58

84% of race

Time at Steady Pace

32:50

16% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:49 /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 mi10:54:1523:007:2423:00
7:24
#8840
10K
6.21 mi11:17:2946:147:2623:14
7:29
#9503
15K
9.32 mi11:40:561:09:417:2923:27
7:33
#9831
20K
12.43 mi12:05:361:34:217:3624:40
7:56
#10636
Half
13.11 mi12:10:421:39:277:355:06
7:29
#10596
25K
15.53 mi12:30:011:58:467:3919:19
7:58
#10863
30K
18.64 mi12:55:112:23:567:4325:10
8:06
#10930
20M
20.00 mi13:06:202:35:057:4511:09
8:12
#10964
21M
21.00 mi13:14:492:43:347:478:29
8:29
#10918
35K
21.75 mi13:20:492:49:347:486:00
8:01
#10943
23M
23.00 mi13:31:052:59:507:4910:16
8:12
#10937
24M
24.00 mi13:38:393:07:247:497:34
7:34
#10802
40K
24.85 mi13:45:153:14:007:486:36
7:43
#10668
25.2M
25.20 mi13:48:113:16:567:492:56
8:30
#10638
Finish
26.22 mi13:56:033:24:487:497:52
7:43
#10590
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi88407499749910552(Top 40%)8426(Top 56%)8426(Top 374%)
10K6.21 mi3.10 mi9503-6637881-3827881-38210275(Top 39%)8319(Top 55%)8319(Top 369%)
15K9.32 mi3.11 mi9831-3288065-1848065-18410552(Top 40%)8426(Top 56%)8426(Top 374%)
20K12.43 mi3.11 mi10636-8058475-4108475-41012923(Top 49%)9400(Top 62%)9400(Top 417%)
Half13.11 mi0.68 mi10596+408462+138462+1310006(Top 38%)8116(Top 53%)8116(Top 360%)
25K15.53 mi2.42 mi10863-2678569-1078569-10712438(Top 47%)9090(Top 60%)9090(Top 404%)
30K18.64 mi3.11 mi10930-678552+178552+1711626(Top 44%)8631(Top 57%)8631(Top 383%)
20M20.00 mi1.36 mi10964-348534+188534+1811711(Top 44%)8574(Top 56%)8574(Top 381%)
21M21.00 mi1.00 mi10918+468483+518483+5110377(Top 39%)7797(Top 51%)7797(Top 346%)
35K21.75 mi0.75 mi10943-258481+28481+212219(Top 46%)8637(Top 57%)8637(Top 384%)
23M23.00 mi1.25 mi10937+68453+288453+2811172(Top 42%)8055(Top 53%)8055(Top 358%)
24M24.00 mi1.00 mi10802+1358362+918362+918163(Top 31%)6419(Top 42%)6419(Top 285%)
40K24.85 mi0.85 mi10668+1348267+958267+958098(Top 30%)6317(Top 42%)6317(Top 281%)
25.2M25.20 mi0.35 mi10638+308236+318236+319523(Top 36%)7049(Top 46%)7049(Top 313%)
Finish26.22 mi1.02 mi10590+488187+498187+4910080(Top 38%)7334(Top 48%)7334(Top 326%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21story building
+97ft-345ft

Overall

10552

Males

8426

M45-49

8426

5K→10K

3.1 - 6.2 mi

Top 39%
×5story building
+79ft-138ft

Overall

10275

Males

8319

M45-49

8319

10K→15K

6.2 - 9.3 mi

Top 40%
×3story building
+67ft-78ft

Overall

10552

Males

8426

M45-49

8426

15K→20K

9.3 - 12.4 mi

Top 49%
×5story building
+106ft-86ft

Overall

12923

Males

9400

M45-49

9400

20K→Half

12.4 - 13.1 mi

Top 38%
×2story building
+19ft-37ft

Overall

10006

Males

8116

M45-49

8116

Half→25K

13.1 - 15.5 mi

Top 47%
×4story building
+66ft-88ft

Overall

12438

Males

9090

M45-49

9090

25K→30K

15.5 - 18.6 mi

Top 44%
×9story building
+181ft-148ft

Overall

11626

Males

8631

M45-49

8631

30K→20M

18.6 - 20.0 mi

Top 44%
×5story building
+64ft-50ft

Overall

11711

Males

8574

M45-49

8574

20M→21M

20.0 - 21.0 mi

Top 39%
×8story building
+106ft-24ft

Overall

10377

Males

7797

M45-49

7797

21M→35K

21.0 - 21.8 mi

Top 46%
×7story building
+17ft-86ft

Overall

12219

Males

8637

M45-49

8637

35K→23M

21.8 - 23.0 mi

Top 42%
×5story building
+23ft-63ft

Overall

11172

Males

8055

M45-49

8055

23M→24M

23.0 - 24.0 mi

Top 31%
×6story building
+12ft-82ft

Overall

8163

Males

6419

M45-49

6419

24M→40K

24.0 - 24.9 mi

Top 30%
×1story
+6ft-20ft

Overall

8098

Males

6317

M45-49

6317

40K→25.2M

24.9 - 25.2 mi

Top 36%
×1story
+13ft-16ft

Overall

9523

Males

7049

M45-49

7049

25.2M→Finish

25.2 - 26.2 mi

Top 38%
×2story building
+22ft-21ft

Overall

10080

Males

7334

M45-49

7334

Passing Analysis

Category:
Athletes Passed
1187*
Passed By
2936
Net Change
-1750
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8840
5K → 10K72735-663#8840#9503
10K → 15K75403-328#9503#9831
15K → 20K25829-805#9831#10636
20K → Half5414+40#10636#10596
Half → 25K56323-267#10596#10863
25K → 30K166233-67#10863#10930
30K → 20M75*109-34#10930#10964
20M → 21M9953+46#10964#10918
21M → 35K4065-25#10918#10943
35K → 23M9185+6#10943#10937
23M → 24M15116+135#10937#10802
24M → 40K14612+134#10802#10668
40K → 25.2M4717+30#10668#10638
25.2M → Finish9042+48#10638#10590
TOTALS1187*2936-1750

* 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