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BOSTON MARATHON 2023

Matthew Kelley

Bib: 31133•M

MA

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
10:22/mi
32:12
↑ 97↓ 3451.5%
10K· 6.21 mi
10:08/mi
1:03:40
↑ 79↓ 1380.4%
15K· 9.32 mi
10:09/mi
1:35:12
↑ 67↓ 78
20K· 12.43 mi
9:57/mi
2:06:08
↑ 106↓ 860.1%
Half· 13.11 mi
9:13/mi
2:12:25
↑ 19↓ 370.5%
25K· 15.53 mi
13:29/mi
2:45:07
↑ 66↓ 880.2%
30K· 18.64 mi
10:19/mi
3:17:11
↑ 181↓ 1480.2%
20M
10:44/mi
3:31:46
↑ 64↓ 500.2%
21M
10:44/mi
3:42:29
↑ 106↓ 241.6%
35K· 21.75 mi
10:00/mi
3:49:58
↑ 17↓ 861.7%
23M
10:37/mi
4:03:16
↑ 23↓ 630.6%
24M
10:37/mi
4:13:53
↓ 821.3%
40K· 24.85 mi
10:50/mi
4:23:09
↓ 200.3%
25.2M
11:10/mi
4:27:00
↑ 13↓ 160.2%
Finish· 26.22 mi
10:20/mi
4:37:32
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:12:25
Pace10:06 /mi
2nd Half
Distance13.11 mi
Time2:25:07
Pace11:04 /mi
📊Positive Split: 9.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:4432:1210:2232:12
10:22
-
10K
6.21 mi12:24:121:03:4010:1531:28
10:08
-0:14
15K
9.32 mi12:55:441:35:1210:1331:32
10:09
+0:01
20K
12.43 mi13:26:402:06:0810:0930:56
9:57
-0:12
Half
13.11 mi13:32:572:12:2510:066:17
9:13
-0:44
25K
15.53 mi14:05:392:45:0710:3832:42
13:29
+4:16
30K
18.64 mi14:37:433:17:1110:3532:04
10:19
-3:10
20M
20.00 mi14:52:183:31:4610:3514:35
10:44
+0:25
21M
21.00 mi15:03:013:42:2910:3610:43
10:44
0:00
35K
21.75 mi15:10:303:49:5810:347:29
10:00
-0:44
23M
23.00 mi15:23:484:03:1610:3513:18
10:37
+0:37
24M
24.00 mi15:34:254:13:5310:3510:37
10:37
0:00
40K
24.85 mi15:43:414:23:0910:359:16
10:50
+0:13
25.2M
25.20 mi15:47:324:27:0010:363:51
11:10
+0:20
Finish
26.22 mi15:58:044:37:3210:3610:32
10:20
-0:50

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

9:13 /mi

Average Pace

10:36 /mi

Slowest Pace

13:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

6:17

2% of race

Time at Steady Pace

3:45:26

81% of race

Time at Slower Pace

45:49

17% of race

Average Pace: 10:35 /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 mi11:52:4432:1210:2232:12
10:22
#24394
10K
6.21 mi12:24:121:03:4010:1531:28
10:08
#24151
15K
9.32 mi12:55:441:35:1210:1331:32
10:09
#24043
20K
12.43 mi13:26:402:06:0810:0930:56
9:57
#23732
Half
13.11 mi13:32:572:12:2510:066:17
9:13
#23632
25K
15.53 mi14:05:392:45:0710:3832:42
13:29
#24412
30K
18.64 mi14:37:433:17:1110:3532:04
10:19
#23956
20M
20.00 mi14:52:183:31:4610:3514:35
10:44
#23839
21M
21.00 mi15:03:013:42:2910:3610:43
10:44
#23651
35K
21.75 mi15:10:303:49:5810:347:29
10:00
#23585
23M
23.00 mi15:23:484:03:1610:3513:18
10:37
#23495
24M
24.00 mi15:34:254:13:5310:3510:37
10:37
#23455
40K
24.85 mi15:43:414:23:0910:359:16
10:50
#23394
25.2M
25.20 mi15:47:324:27:0010:363:51
11:10
#23361
Finish
26.22 mi15:58:044:37:3210:3610:32
10:20
#23332
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 mi24394142771427723780(Top 89%)13990(Top 92%)13990(Top 265%)
10K6.21 mi3.10 mi24151+24314159+11814159+11823971(Top 90%)14075(Top 93%)14075(Top 266%)
15K9.32 mi3.11 mi24043+10814106+5314106+5323780(Top 89%)13990(Top 92%)13990(Top 265%)
20K12.43 mi3.11 mi23732+31113976+13013976+13022806(Top 86%)13535(Top 89%)13535(Top 256%)
Half13.11 mi0.68 mi23632+10013925+5113925+5121195(Top 80%)12827(Top 85%)12827(Top 243%)
25K15.53 mi2.42 mi24412-78014250-32514250-32526111(Top 98%)14950(Top 99%)14950(Top 283%)
30K18.64 mi3.11 mi23956+45614043+20714043+20721824(Top 82%)13001(Top 86%)13001(Top 246%)
20M20.00 mi1.36 mi23839+11713981+6213981+6222213(Top 83%)13086(Top 86%)13086(Top 248%)
21M21.00 mi1.00 mi23651+18813885+9613885+9620202(Top 76%)12143(Top 80%)12143(Top 230%)
35K21.75 mi0.75 mi23585+6613848+3713848+3721278(Top 80%)12621(Top 83%)12621(Top 239%)
23M23.00 mi1.25 mi23495+9013796+5213796+5221604(Top 81%)12731(Top 84%)12731(Top 241%)
24M24.00 mi1.00 mi23455+4013767+2913767+2922270(Top 84%)13006(Top 86%)13006(Top 246%)
40K24.85 mi0.85 mi23394+6113725+4213725+4222011(Top 83%)12834(Top 85%)12834(Top 243%)
25.2M25.20 mi0.35 mi23361+3313703+2213703+2220823(Top 78%)12323(Top 81%)12323(Top 233%)
Finish26.22 mi1.02 mi23332+2913684+1913684+1922643(Top 85%)13155(Top 87%)13155(Top 249%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 89%
×21story building
+97ft-345ft

Overall

23780

Males

13990

M18-39

13990

5K→10K

3.1 - 6.2 mi

Top 90%
×5story building
+79ft-138ft

Overall

23971

Males

14075

M18-39

14075

10K→15K

6.2 - 9.3 mi

Top 89%
×3story building
+67ft-78ft

Overall

23780

Males

13990

M18-39

13990

15K→20K

9.3 - 12.4 mi

Top 86%
×5story building
+106ft-86ft

Overall

22806

Males

13535

M18-39

13535

20K→Half

12.4 - 13.1 mi

Top 80%
×2story building
+19ft-37ft

Overall

21195

Males

12827

M18-39

12827

Half→25K

13.1 - 15.5 mi

Top 98%
×4story building
+66ft-88ft

Overall

26111

Males

14950

M18-39

14950

25K→30K

15.5 - 18.6 mi

Top 82%
×9story building
+181ft-148ft

Overall

21824

Males

13001

M18-39

13001

30K→20M

18.6 - 20.0 mi

Top 83%
×5story building
+64ft-50ft

Overall

22213

Males

13086

M18-39

13086

20M→21M

20.0 - 21.0 mi

Top 76%
×8story building
+106ft-24ft

Overall

20202

Males

12143

M18-39

12143

21M→35K

21.0 - 21.8 mi

Top 80%
×7story building
+17ft-86ft

Overall

21278

Males

12621

M18-39

12621

35K→23M

21.8 - 23.0 mi

Top 81%
×5story building
+23ft-63ft

Overall

21604

Males

12731

M18-39

12731

23M→24M

23.0 - 24.0 mi

Top 84%
×6story building
+12ft-82ft

Overall

22270

Males

13006

M18-39

13006

24M→40K

24.0 - 24.9 mi

Top 83%
×1story
+6ft-20ft

Overall

22011

Males

12834

M18-39

12834

40K→25.2M

24.9 - 25.2 mi

Top 78%
×1story
+13ft-16ft

Overall

20823

Males

12323

M18-39

12323

25.2M→Finish

25.2 - 26.2 mi

Top 85%
×2story building
+22ft-21ft

Overall

22643

Males

13155

M18-39

13155

Passing Analysis

Category:
Athletes Passed
2087
Passed By
1025
Net Change
+1062
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24394
5K → 10K33289+243#24394#24151
10K → 15K18476+108#24151#24043
15K → 20K32413+311#24043#23732
20K → Half1000+100#23732#23632
Half → 25K7787-780#23632#24412
25K → 30K4593+456#24412#23956
30K → 20M1214+117#23956#23839
20M → 21M1880+188#23839#23651
21M → 35K704+66#23651#23585
35K → 23M966+90#23585#23495
23M → 24M5010+40#23495#23455
24M → 40K7110+61#23455#23394
40K → 25.2M341+33#23394#23361
25.2M → Finish5122+29#23361#23332
TOTALS20871025+1062
📊

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