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BOSTON MARATHON 2023

Henry Guzman

Bib: 31862•M

CO

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M55-59)
#0 / 1422
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
9:56/mi
30:52
↑ 97↓ 3451.5%
10K· 6.21 mi
9:13/mi
59:31
↑ 79↓ 1380.4%
15K· 9.32 mi
9:36/mi
1:29:22
↑ 67↓ 78
20K· 12.43 mi
9:41/mi
1:59:27
↑ 106↓ 860.1%
Half· 13.11 mi
9:08/mi
2:05:41
↑ 19↓ 370.5%
25K· 15.53 mi
9:55/mi
2:29:43
↑ 66↓ 880.2%
30K· 18.64 mi
10:02/mi
3:00:54
↑ 181↓ 1480.2%
20M
9:37/mi
3:13:58
↑ 64↓ 500.2%
21M
10:11/mi
3:24:09
↑ 106↓ 241.6%
35K· 21.75 mi
8:59/mi
3:30:52
↑ 17↓ 861.7%
23M
10:00/mi
3:43:23
↑ 23↓ 630.6%
24M
9:41/mi
3:53:04
↓ 821.3%
40K· 24.85 mi
9:48/mi
4:01:27
↓ 200.3%
25.2M
10:03/mi
4:04:55
↑ 13↓ 160.2%
Finish· 26.22 mi
9:11/mi
4:14:17
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:05:41
Pace9:35 /mi
2nd Half
Distance13.11 mi
Time2:08:36
Pace9:49 /mi
📊Positive Split: 2.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:0630:529:5630:52
9:56
-
10K
6.21 mi12:15:4559:319:3528:39
9:13
-0:43
15K
9.32 mi12:45:361:29:229:3529:51
9:36
+0:23
20K
12.43 mi13:15:411:59:279:3730:05
9:41
+0:05
Half
13.11 mi13:21:552:05:419:356:14
9:08
-0:33
25K
15.53 mi13:45:572:29:439:3824:02
9:55
+0:47
30K
18.64 mi14:17:083:00:549:4231:11
10:02
+0:07
20M
20.00 mi14:30:123:13:589:4213:04
9:37
-0:25
21M
21.00 mi14:40:233:24:099:4310:11
10:11
+0:34
35K
21.75 mi14:47:063:30:529:426:43
8:59
-1:12
23M
23.00 mi14:59:373:43:239:4312:31
10:00
+1:01
24M
24.00 mi15:09:183:53:049:439:41
9:41
-0:19
40K
24.85 mi15:17:414:01:279:438:23
9:48
+0:07
25.2M
25.20 mi15:21:094:04:559:433:28
10:03
+0:15
Finish
26.22 mi15:30:314:14:179:429:22
9:11
-0:52

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

9:42 /mi

Slowest Pace

10:11 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:22:02

56% of race

Time at Steady Pace

1:52:15

44% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:42 /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 mi11:47:0630:529:5630:52
9:56
#23303
10K
6.21 mi12:15:4559:319:3528:39
9:13
#22555
15K
9.32 mi12:45:361:29:229:3529:51
9:36
#22563
20K
12.43 mi13:15:411:59:279:3730:05
9:41
#22435
Half
13.11 mi13:21:552:05:419:356:14
9:08
#22368
25K
15.53 mi13:45:572:29:439:3824:02
9:55
#22317
30K
18.64 mi14:17:083:00:549:4231:11
10:02
#22076
20M
20.00 mi14:30:123:13:589:4213:04
9:37
#21876
21M
21.00 mi14:40:233:24:099:4310:11
10:11
#21720
35K
21.75 mi14:47:063:30:529:426:43
8:59
#21594
23M
23.00 mi14:59:373:43:239:4312:31
10:00
#21492
24M
24.00 mi15:09:183:53:049:439:41
9:41
#21409
40K
24.85 mi15:17:414:01:279:438:23
9:48
#21321
25.2M
25.20 mi15:21:094:04:559:433:28
10:03
#21263
Finish
26.22 mi15:30:314:14:179:429:22
9:11
#21186
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi23303137281372822549(Top 85%)13430(Top 88%)13430(Top 944%)
10K6.21 mi3.10 mi22555+74813410+31813410+31821690(Top 81%)13016(Top 86%)13016(Top 915%)
15K9.32 mi3.11 mi22563-813417-713417-722549(Top 85%)13430(Top 88%)13430(Top 944%)
20K12.43 mi3.11 mi22435+12813363+5413363+5422113(Top 83%)13224(Top 87%)13224(Top 930%)
Half13.11 mi0.68 mi22368+6713335+2813335+2821005(Top 79%)12725(Top 84%)12725(Top 895%)
25K15.53 mi2.42 mi22317+5113285+5013285+5022023(Top 83%)13152(Top 87%)13152(Top 925%)
30K18.64 mi3.11 mi22076+24113175+11013175+11021140(Top 79%)12692(Top 84%)12692(Top 893%)
20M20.00 mi1.36 mi21876+20013078+9713078+9719300(Top 72%)11818(Top 78%)11818(Top 831%)
21M21.00 mi1.00 mi21720+15612999+7912999+7918684(Top 70%)11503(Top 76%)11503(Top 809%)
35K21.75 mi0.75 mi21594+12612938+6112938+6117876(Top 67%)11078(Top 73%)11078(Top 779%)
23M23.00 mi1.25 mi21492+10212874+6412874+6420004(Top 75%)12018(Top 79%)12018(Top 845%)
24M24.00 mi1.00 mi21409+8312825+4912825+4919864(Top 75%)11937(Top 79%)11937(Top 839%)
40K24.85 mi0.85 mi21321+8812774+5112774+5119434(Top 73%)11672(Top 77%)11672(Top 821%)
25.2M25.20 mi0.35 mi21263+5812744+3012744+3017694(Top 66%)10855(Top 72%)10855(Top 763%)
Finish26.22 mi1.02 mi21186+7712696+4812696+4818921(Top 71%)11489(Top 76%)11489(Top 808%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 85%
×21story building
+97ft-345ft

Overall

22549

Males

13430

M55-59

13430

5K→10K

3.1 - 6.2 mi

Top 81%
×5story building
+79ft-138ft

Overall

21690

Males

13016

M55-59

13016

10K→15K

6.2 - 9.3 mi

Top 85%
×3story building
+67ft-78ft

Overall

22549

Males

13430

M55-59

13430

15K→20K

9.3 - 12.4 mi

Top 83%
×5story building
+106ft-86ft

Overall

22113

Males

13224

M55-59

13224

20K→Half

12.4 - 13.1 mi

Top 79%
×2story building
+19ft-37ft

Overall

21005

Males

12725

M55-59

12725

Half→25K

13.1 - 15.5 mi

Top 83%
×4story building
+66ft-88ft

Overall

22023

Males

13152

M55-59

13152

25K→30K

15.5 - 18.6 mi

Top 79%
×9story building
+181ft-148ft

Overall

21140

Males

12692

M55-59

12692

30K→20M

18.6 - 20.0 mi

Top 72%
×5story building
+64ft-50ft

Overall

19300

Males

11818

M55-59

11818

20M→21M

20.0 - 21.0 mi

Top 70%
×8story building
+106ft-24ft

Overall

18684

Males

11503

M55-59

11503

21M→35K

21.0 - 21.8 mi

Top 67%
×7story building
+17ft-86ft

Overall

17876

Males

11078

M55-59

11078

35K→23M

21.8 - 23.0 mi

Top 75%
×5story building
+23ft-63ft

Overall

20004

Males

12018

M55-59

12018

23M→24M

23.0 - 24.0 mi

Top 75%
×6story building
+12ft-82ft

Overall

19864

Males

11937

M55-59

11937

24M→40K

24.0 - 24.9 mi

Top 73%
×1story
+6ft-20ft

Overall

19434

Males

11672

M55-59

11672

40K→25.2M

24.9 - 25.2 mi

Top 66%
×1story
+13ft-16ft

Overall

17694

Males

10855

M55-59

10855

25.2M→Finish

25.2 - 26.2 mi

Top 71%
×2story building
+22ft-21ft

Overall

18921

Males

11489

M55-59

11489

Passing Analysis

Category:
Athletes Passed
2524
Passed By
407
Net Change
+2117
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23303
5K → 10K77527+748#23303#22555
10K → 15K143151-8#22555#22563
15K → 20K19466+128#22563#22435
20K → Half758+67#22435#22368
Half → 25K12574+51#22368#22317
25K → 30K27029+241#22317#22076
30K → 20M2022+200#22076#21876
20M → 21M1582+156#21876#21720
21M → 35K1271+126#21720#21594
35K → 23M12523+102#21594#21492
23M → 24M929+83#21492#21409
24M → 40K946+88#21409#21321
40K → 25.2M613+58#21321#21263
25.2M → Finish836+77#21263#21186
TOTALS2524407+2117
📊

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