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BOSTON MARATHON 2023

Adam Shurtleff

Bib: 25270•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
9:56/mi
30:52
↑ 97↓ 3451.5%
10K· 6.21 mi
9:55/mi
1:01:41
↑ 79↓ 1380.4%
15K· 9.32 mi
9:33/mi
1:31:20
↑ 67↓ 78
20K· 12.43 mi
9:38/mi
2:01:17
↑ 106↓ 860.1%
Half· 13.11 mi
9:24/mi
2:07:42
↑ 19↓ 370.5%
25K· 15.53 mi
10:03/mi
2:32:03
↑ 66↓ 880.2%
30K· 18.64 mi
10:28/mi
3:04:35
↑ 181↓ 1480.2%
20M
10:39/mi
3:19:03
↑ 64↓ 500.2%
21M
10:38/mi
3:29:41
↑ 106↓ 241.6%
35K· 21.75 mi
10:15/mi
3:37:21
↑ 17↓ 861.7%
23M
11:08/mi
3:51:17
↑ 23↓ 630.6%
24M
10:08/mi
4:01:25
↓ 821.3%
40K· 24.85 mi
9:53/mi
4:09:52
↓ 200.3%
25.2M
10:41/mi
4:13:33
↑ 13↓ 160.2%
Finish· 26.22 mi
9:10/mi
4:22:53
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:07:42
Pace9:44 /mi
2nd Half
Distance13.11 mi
Time2:15:11
Pace10:19 /mi
📊Positive Split: 5.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:0330:529:5630:52
9:56
-
10K
6.21 mi12:23:521:01:419:5630:49
9:55
-0:01
15K
9.32 mi12:53:311:31:209:4829:39
9:33
-0:22
20K
12.43 mi13:23:282:01:179:4629:57
9:38
+0:05
Half
13.11 mi13:29:532:07:429:446:25
9:24
-0:14
25K
15.53 mi13:54:142:32:039:4724:21
10:03
+0:39
30K
18.64 mi14:26:463:04:359:5432:32
10:28
+0:25
20M
20.00 mi14:41:143:19:039:5714:28
10:39
+0:11
21M
21.00 mi14:51:523:29:419:5910:38
10:38
-0:01
35K
21.75 mi14:59:323:37:2110:007:40
10:15
-0:23
23M
23.00 mi15:13:283:51:1710:0313:56
11:08
+0:53
24M
24.00 mi15:23:364:01:2510:0410:08
10:08
-1:00
40K
24.85 mi15:32:034:09:5210:038:27
9:53
-0:15
25.2M
25.20 mi15:35:444:13:3310:043:41
10:41
+0:48
Finish
26.22 mi15:45:044:22:5310:029:20
9:10
-1:31

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

9:10 /mi

Average Pace

10:02 /mi

Slowest Pace

11:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:15:21

29% of race

Time at Steady Pace

1:52:17

43% of race

Time at Slower Pace

1:15:15

29% of race

Average Pace: 10:02 /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 mi11:53:0330:529:5630:52
9:56
#23287
10K
6.21 mi12:23:521:01:419:5630:49
9:55
#23456
15K
9.32 mi12:53:311:31:209:4829:39
9:33
#23148
20K
12.43 mi13:23:282:01:179:4629:57
9:38
#22827
Half
13.11 mi13:29:532:07:429:446:25
9:24
#22779
25K
15.53 mi13:54:142:32:039:4724:21
10:03
#22680
30K
18.64 mi14:26:463:04:359:5432:32
10:28
#22562
20M
20.00 mi14:41:143:19:039:5714:28
10:39
#22521
21M
21.00 mi14:51:523:29:419:5910:38
10:38
#22381
35K
21.75 mi14:59:323:37:2110:007:40
10:15
#22358
23M
23.00 mi15:13:283:51:1710:0313:56
11:08
#22373
24M
24.00 mi15:23:364:01:2510:0410:08
10:08
#22341
40K
24.85 mi15:32:034:09:5210:038:27
9:53
#22242
25.2M
25.20 mi15:35:444:13:3310:043:41
10:41
#22203
Finish
26.22 mi15:45:044:22:5310:029:20
9:10
#22095
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi23287137241372422372(Top 84%)13357(Top 88%)13357(Top 253%)
10K6.21 mi3.10 mi23456-16913834-11013834-11023528(Top 88%)13864(Top 91%)13864(Top 262%)
15K9.32 mi3.11 mi23148+30813697+13713697+13722372(Top 84%)13357(Top 88%)13357(Top 253%)
20K12.43 mi3.11 mi22827+32113545+15213545+15221970(Top 83%)13165(Top 87%)13165(Top 249%)
Half13.11 mi0.68 mi22779+4813525+2013525+2021823(Top 82%)13105(Top 86%)13105(Top 248%)
25K15.53 mi2.42 mi22680+9913463+6213463+6222303(Top 84%)13283(Top 88%)13283(Top 251%)
30K18.64 mi3.11 mi22562+11813372+9113372+9122143(Top 83%)13146(Top 87%)13146(Top 249%)
20M20.00 mi1.36 mi22521+4113349+2313349+2322023(Top 83%)13010(Top 86%)13010(Top 246%)
21M21.00 mi1.00 mi22381+14013280+6913280+6919968(Top 75%)12039(Top 79%)12039(Top 228%)
35K21.75 mi0.75 mi22358+2313263+1713263+1721870(Top 82%)12873(Top 85%)12873(Top 244%)
23M23.00 mi1.25 mi22373-1513269-613269-622586(Top 85%)13195(Top 87%)13195(Top 250%)
24M24.00 mi1.00 mi22341+3213251+1813251+1821149(Top 79%)12490(Top 82%)12490(Top 236%)
40K24.85 mi0.85 mi22242+9913201+5013201+5019642(Top 74%)11769(Top 78%)11769(Top 223%)
25.2M25.20 mi0.35 mi22203+3913178+2313178+2319643(Top 74%)11767(Top 78%)11767(Top 223%)
Finish26.22 mi1.02 mi22095+10813113+6513113+6518729(Top 70%)11419(Top 75%)11419(Top 216%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 84%
×21story building
+97ft-345ft

Overall

22372

Males

13357

M18-39

13357

5K→10K

3.1 - 6.2 mi

Top 88%
×5story building
+79ft-138ft

Overall

23528

Males

13864

M18-39

13864

10K→15K

6.2 - 9.3 mi

Top 84%
×3story building
+67ft-78ft

Overall

22372

Males

13357

M18-39

13357

15K→20K

9.3 - 12.4 mi

Top 83%
×5story building
+106ft-86ft

Overall

21970

Males

13165

M18-39

13165

20K→Half

12.4 - 13.1 mi

Top 82%
×2story building
+19ft-37ft

Overall

21823

Males

13105

M18-39

13105

Half→25K

13.1 - 15.5 mi

Top 84%
×4story building
+66ft-88ft

Overall

22303

Males

13283

M18-39

13283

25K→30K

15.5 - 18.6 mi

Top 83%
×9story building
+181ft-148ft

Overall

22143

Males

13146

M18-39

13146

30K→20M

18.6 - 20.0 mi

Top 83%
×5story building
+64ft-50ft

Overall

22023

Males

13010

M18-39

13010

20M→21M

20.0 - 21.0 mi

Top 75%
×8story building
+106ft-24ft

Overall

19968

Males

12039

M18-39

12039

21M→35K

21.0 - 21.8 mi

Top 82%
×7story building
+17ft-86ft

Overall

21870

Males

12873

M18-39

12873

35K→23M

21.8 - 23.0 mi

Top 85%
×5story building
+23ft-63ft

Overall

22586

Males

13195

M18-39

13195

23M→24M

23.0 - 24.0 mi

Top 79%
×6story building
+12ft-82ft

Overall

21149

Males

12490

M18-39

12490

24M→40K

24.0 - 24.9 mi

Top 74%
×1story
+6ft-20ft

Overall

19642

Males

11769

M18-39

11769

40K→25.2M

24.9 - 25.2 mi

Top 74%
×1story
+13ft-16ft

Overall

19643

Males

11767

M18-39

11767

25.2M→Finish

25.2 - 26.2 mi

Top 70%
×2story building
+22ft-21ft

Overall

18729

Males

11419

M18-39

11419

Passing Analysis

Category:
Athletes Passed
1806
Passed By
614
Net Change
+1192
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23287
5K → 10K140309-169#23287#23456
10K → 15K33931+308#23456#23148
15K → 20K33615+321#23148#22827
20K → Half535+48#22827#22779
Half → 25K14142+99#22779#22680
25K → 30K18365+118#22680#22562
30K → 20M7130+41#22562#22521
20M → 21M1455+140#22521#22381
21M → 35K4421+23#22381#22358
35K → 23M4964-15#22358#22373
23M → 24M5220+32#22373#22341
24M → 40K1034+99#22341#22242
40K → 25.2M401+39#22242#22203
25.2M → Finish1102+108#22203#22095
TOTALS1806614+1192
📊

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