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BOSTON MARATHON 2023

Kyle Grossman

Bib: 7506•M

CA

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
9:11/mi
28:33
↑ 97↓ 3451.5%
10K· 6.21 mi
9:21/mi
57:37
↑ 79↓ 1380.4%
15K· 9.32 mi
9:22/mi
1:26:43
↑ 67↓ 78
20K· 12.43 mi
9:17/mi
1:55:33
↑ 106↓ 860.1%
Half· 13.11 mi
9:20/mi
2:01:55
↑ 19↓ 370.5%
25K· 15.53 mi
9:08/mi
2:24:04
↑ 66↓ 880.2%
30K· 18.64 mi
9:17/mi
2:52:55
↑ 181↓ 1480.2%
20M
9:22/mi
3:05:39
↑ 64↓ 500.2%
21M
10:04/mi
3:15:43
↑ 106↓ 241.6%
35K· 21.75 mi
9:03/mi
3:22:29
↑ 17↓ 861.7%
23M
9:18/mi
3:34:08
↑ 23↓ 630.6%
24M
8:59/mi
3:43:07
↓ 821.3%
40K· 24.85 mi
9:25/mi
3:51:10
↓ 200.3%
25.2M
10:23/mi
3:54:45
↑ 13↓ 160.2%
Finish· 26.22 mi
9:04/mi
4:03:59
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time2:01:55
Pace9:18 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time2:02:04
Pace9:19 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:34:0228:339:1128:33
9:11
-
10K
6.21 mi11:03:0657:379:1629:04
9:21
+0:10
15K
9.32 mi11:32:121:26:439:1829:06
9:22
+0:01
20K
12.43 mi12:01:021:55:339:1828:50
9:17
-0:05
Half
13.11 mi12:07:242:01:559:186:22
9:20
+0:03
25K
15.53 mi12:29:332:24:049:1622:09
9:08
-0:12
30K
18.64 mi12:58:242:52:559:1728:51
9:17
+0:09
20M
20.00 mi13:11:083:05:399:1712:44
9:22
+0:05
21M
21.00 mi13:21:123:15:439:1910:04
10:04
+0:42
35K
21.75 mi13:27:583:22:299:196:46
9:03
-1:01
23M
23.00 mi13:39:373:34:089:1911:39
9:18
+0:15
24M
24.00 mi13:48:363:43:079:188:59
8:59
-0:19
40K
24.85 mi13:56:393:51:109:188:03
9:25
+0:26
25.2M
25.20 mi14:00:143:54:459:193:35
10:23
+0:58
Finish
26.22 mi14:09:284:03:599:199:14
9:04
-1:19

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

8:59 /mi

Average Pace

9:19 /mi

Slowest Pace

10:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:50:20

94% of race

Time at Steady Pace

13:39

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:18 /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 mi10:34:0228:339:1128:33
9:11
#21182
10K
6.21 mi11:03:0657:379:1629:04
9:21
#21643
15K
9.32 mi11:32:121:26:439:1829:06
9:22
#21699
20K
12.43 mi12:01:021:55:339:1828:50
9:17
#21501
Half
13.11 mi12:07:242:01:559:186:22
9:20
#21492
25K
15.53 mi12:29:332:24:049:1622:09
9:08
#21195
30K
18.64 mi12:58:242:52:559:1728:51
9:17
#20734
20M
20.00 mi13:11:083:05:399:1712:44
9:22
#20555
21M
21.00 mi13:21:123:15:439:1910:04
10:04
#20410
35K
21.75 mi13:27:583:22:299:196:46
9:03
#20307
23M
23.00 mi13:39:373:34:089:1911:39
9:18
#20163
24M
24.00 mi13:48:363:43:079:188:59
8:59
#20068
40K
24.85 mi13:56:393:51:109:188:03
9:25
#19987
25.2M
25.20 mi14:00:143:54:459:193:35
10:23
#19962
Finish
26.22 mi14:09:284:03:599:199:14
9:04
#19901
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi21182126971269721852(Top 82%)13121(Top 86%)13121(Top 248%)
10K6.21 mi3.10 mi21643-46112962-26512962-26522084(Top 83%)13201(Top 87%)13201(Top 250%)
15K9.32 mi3.11 mi21699-5613001-3913001-3921852(Top 82%)13121(Top 86%)13121(Top 248%)
20K12.43 mi3.11 mi21501+19812928+7312928+7320901(Top 79%)12707(Top 84%)12707(Top 240%)
Half13.11 mi0.68 mi21492+912930-212930-221592(Top 81%)12997(Top 86%)12997(Top 246%)
25K15.53 mi2.42 mi21195+29712799+13112799+13119565(Top 73%)12086(Top 80%)12086(Top 229%)
30K18.64 mi3.11 mi20734+46112589+21012589+21018552(Top 70%)11584(Top 76%)11584(Top 219%)
20M20.00 mi1.36 mi20555+17912481+10812481+10818320(Top 69%)11387(Top 75%)11387(Top 215%)
21M21.00 mi1.00 mi20410+14512409+7212409+7218259(Top 69%)11339(Top 75%)11339(Top 215%)
35K21.75 mi0.75 mi20307+10312350+5912350+5918080(Top 68%)11182(Top 74%)11182(Top 212%)
23M23.00 mi1.25 mi20163+14412278+7212278+7217533(Top 66%)10923(Top 72%)10923(Top 207%)
24M24.00 mi1.00 mi20068+9512230+4812230+4817154(Top 64%)10700(Top 71%)10700(Top 202%)
40K24.85 mi0.85 mi19987+8112187+4312187+4318016(Top 68%)11044(Top 73%)11044(Top 209%)
25.2M25.20 mi0.35 mi19962+2512173+1412173+1418731(Top 70%)11359(Top 75%)11359(Top 215%)
Finish26.22 mi1.02 mi19901+6112145+2812145+2818272(Top 69%)11205(Top 74%)11205(Top 212%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21story building
+97ft-345ft

Overall

21852

Males

13121

M18-39

13121

5K→10K

3.1 - 6.2 mi

Top 83%
×5story building
+79ft-138ft

Overall

22084

Males

13201

M18-39

13201

10K→15K

6.2 - 9.3 mi

Top 82%
×3story building
+67ft-78ft

Overall

21852

Males

13121

M18-39

13121

15K→20K

9.3 - 12.4 mi

Top 79%
×5story building
+106ft-86ft

Overall

20901

Males

12707

M18-39

12707

20K→Half

12.4 - 13.1 mi

Top 81%
×2story building
+19ft-37ft

Overall

21592

Males

12997

M18-39

12997

Half→25K

13.1 - 15.5 mi

Top 73%
×4story building
+66ft-88ft

Overall

19565

Males

12086

M18-39

12086

25K→30K

15.5 - 18.6 mi

Top 70%
×9story building
+181ft-148ft

Overall

18552

Males

11584

M18-39

11584

30K→20M

18.6 - 20.0 mi

Top 69%
×5story building
+64ft-50ft

Overall

18320

Males

11387

M18-39

11387

20M→21M

20.0 - 21.0 mi

Top 69%
×8story building
+106ft-24ft

Overall

18259

Males

11339

M18-39

11339

21M→35K

21.0 - 21.8 mi

Top 68%
×7story building
+17ft-86ft

Overall

18080

Males

11182

M18-39

11182

35K→23M

21.8 - 23.0 mi

Top 66%
×5story building
+23ft-63ft

Overall

17533

Males

10923

M18-39

10923

23M→24M

23.0 - 24.0 mi

Top 64%
×6story building
+12ft-82ft

Overall

17154

Males

10700

M18-39

10700

24M→40K

24.0 - 24.9 mi

Top 68%
×1story
+6ft-20ft

Overall

18016

Males

11044

M18-39

11044

40K→25.2M

24.9 - 25.2 mi

Top 70%
×1story
+13ft-16ft

Overall

18731

Males

11359

M18-39

11359

25.2M→Finish

25.2 - 26.2 mi

Top 69%
×2story building
+22ft-21ft

Overall

18272

Males

11205

M18-39

11205

Passing Analysis

Category:
Athletes Passed
2209
Passed By
928
Net Change
+1281
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21182
5K → 10K106567-461#21182#21643
10K → 15K143199-56#21643#21699
15K → 20K24143+198#21699#21501
20K → Half3324+9#21501#21492
Half → 25K3025+297#21492#21195
25K → 30K47110+461#21195#20734
30K → 20M1867+179#20734#20555
20M → 21M15914+145#20555#20410
21M → 35K1118+103#20410#20307
35K → 23M1528+144#20307#20163
23M → 24M1027+95#20163#20068
24M → 40K9312+81#20068#19987
40K → 25.2M3510+25#19987#19962
25.2M → Finish7514+61#19962#19901
TOTALS2209928+1281
📊

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