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BOSTON MARATHON 2023

Shannon Chambers

Bib: 30750•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M60-64)
#0 / 1110
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
30:53
↑ 97↓ 3451.5%
10K· 6.21 mi
9:32/mi
1:00:30
↑ 79↓ 1380.4%
15K· 9.32 mi
9:22/mi
1:29:37
↑ 67↓ 78
20K· 12.43 mi
9:23/mi
1:58:45
↑ 106↓ 860.1%
Half· 13.11 mi
9:17/mi
2:05:05
↑ 19↓ 370.5%
25K· 15.53 mi
9:35/mi
2:28:20
↑ 66↓ 880.2%
30K· 18.64 mi
10:11/mi
2:59:58
↑ 181↓ 1480.2%
20M
9:55/mi
3:13:27
↑ 64↓ 500.2%
21M
10:51/mi
3:24:18
↑ 106↓ 241.6%
35K· 21.75 mi
9:44/mi
3:31:35
↑ 17↓ 861.7%
23M
11:15/mi
3:45:40
↑ 23↓ 630.6%
24M
11:19/mi
3:56:59
↓ 821.3%
40K· 24.85 mi
11:27/mi
4:06:46
↓ 200.3%
25.2M
12:31/mi
4:11:05
↑ 13↓ 160.2%
Finish· 26.22 mi
10:40/mi
4:21:57
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:05:05
Pace9:32 /mi
2nd Half
Distance13.11 mi
Time2:16:52
Pace10:26 /mi
📊Positive Split: 9.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:5730:539:5630:53
9:56
-
10K
6.21 mi12:19:341:00:309:4429:37
9:32
-0:24
15K
9.32 mi12:48:411:29:379:3729:07
9:22
-0:10
20K
12.43 mi13:17:491:58:459:3329:08
9:23
+0:01
Half
13.11 mi13:24:092:05:059:326:20
9:17
-0:06
25K
15.53 mi13:47:242:28:209:3323:15
9:35
+0:18
30K
18.64 mi14:19:022:59:589:3931:38
10:11
+0:36
20M
20.00 mi14:32:313:13:279:4013:29
9:55
-0:16
21M
21.00 mi14:43:223:24:189:4410:51
10:51
+0:56
35K
21.75 mi14:50:393:31:359:447:17
9:44
-1:07
23M
23.00 mi15:04:443:45:409:4914:05
11:15
+1:31
24M
24.00 mi15:16:033:56:599:5211:19
11:19
+0:04
40K
24.85 mi15:25:504:06:469:569:47
11:27
+0:08
25.2M
25.20 mi15:30:094:11:059:584:19
12:31
+1:04
Finish
26.22 mi15:41:014:21:5710:0010:52
10:40
-1:51

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

9:17 /mi

Average Pace

10:00 /mi

Slowest Pace

12:31 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:04:35

25% of race

Time at Steady Pace

2:16:09

52% of race

Time at Slower Pace

1:01:13

23% of race

Average Pace: 9:59 /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 mi11:49:5730:539:5630:53
9:56
#23306
10K
6.21 mi12:19:341:00:309:4429:37
9:32
#22998
15K
9.32 mi12:48:411:29:379:3729:07
9:22
#22632
20K
12.43 mi13:17:491:58:459:3329:08
9:23
#22275
Half
13.11 mi13:24:092:05:059:326:20
9:17
#22221
25K
15.53 mi13:47:242:28:209:3323:15
9:35
#22025
30K
18.64 mi14:19:022:59:589:3931:38
10:11
#21937
20M
20.00 mi14:32:313:13:279:4013:29
9:55
#21796
21M
21.00 mi14:43:223:24:189:4410:51
10:51
#21735
35K
21.75 mi14:50:393:31:359:447:17
9:44
#21696
23M
23.00 mi15:04:443:45:409:4914:05
11:15
#21783
24M
24.00 mi15:16:033:56:599:5211:19
11:19
#21883
40K
24.85 mi15:25:504:06:469:569:47
11:27
#21934
25.2M
25.20 mi15:30:094:11:059:584:19
12:31
#21960
Finish
26.22 mi15:41:014:21:5710:0010:52
10:40
#22008
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi23306137311373121878(Top 82%)13137(Top 87%)13137(Top 1184%)
10K6.21 mi3.10 mi22998+30813614+11713614+11722602(Top 85%)13439(Top 89%)13439(Top 1211%)
15K9.32 mi3.11 mi22632+36613454+16013454+16021878(Top 82%)13137(Top 87%)13137(Top 1184%)
20K12.43 mi3.11 mi22275+35713282+17213282+17221181(Top 80%)12830(Top 85%)12830(Top 1156%)
Half13.11 mi0.68 mi22221+5413252+3013252+3021435(Top 81%)12939(Top 85%)12939(Top 1166%)
25K15.53 mi2.42 mi22025+19613163+8913163+8921110(Top 79%)12761(Top 84%)12761(Top 1150%)
30K18.64 mi3.11 mi21937+8813113+5013113+5021492(Top 81%)12842(Top 85%)12842(Top 1157%)
20M20.00 mi1.36 mi21796+14113045+6813045+6820248(Top 76%)12229(Top 81%)12229(Top 1102%)
21M21.00 mi1.00 mi21735+6113006+3913006+3920498(Top 77%)12289(Top 81%)12289(Top 1107%)
35K21.75 mi0.75 mi21696+3912976+3012976+3020564(Top 77%)12293(Top 81%)12293(Top 1107%)
23M23.00 mi1.25 mi21783-8713001-2513001-2522802(Top 86%)13291(Top 88%)13291(Top 1197%)
24M24.00 mi1.00 mi21883-10013048-4713048-4723604(Top 89%)13634(Top 90%)13634(Top 1228%)
40K24.85 mi0.85 mi21934-5113055-713055-723114(Top 87%)13369(Top 88%)13369(Top 1204%)
25.2M25.20 mi0.35 mi21960-2613063-813063-823290(Top 87%)13444(Top 89%)13444(Top 1211%)
Finish26.22 mi1.02 mi22008-4813078-1513078-1523344(Top 88%)13494(Top 89%)13494(Top 1216%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21story building
+97ft-345ft

Overall

21878

Males

13137

M60-64

13137

5K→10K

3.1 - 6.2 mi

Top 85%
×5story building
+79ft-138ft

Overall

22602

Males

13439

M60-64

13439

10K→15K

6.2 - 9.3 mi

Top 82%
×3story building
+67ft-78ft

Overall

21878

Males

13137

M60-64

13137

15K→20K

9.3 - 12.4 mi

Top 80%
×5story building
+106ft-86ft

Overall

21181

Males

12830

M60-64

12830

20K→Half

12.4 - 13.1 mi

Top 81%
×2story building
+19ft-37ft

Overall

21435

Males

12939

M60-64

12939

Half→25K

13.1 - 15.5 mi

Top 79%
×4story building
+66ft-88ft

Overall

21110

Males

12761

M60-64

12761

25K→30K

15.5 - 18.6 mi

Top 81%
×9story building
+181ft-148ft

Overall

21492

Males

12842

M60-64

12842

30K→20M

18.6 - 20.0 mi

Top 76%
×5story building
+64ft-50ft

Overall

20248

Males

12229

M60-64

12229

20M→21M

20.0 - 21.0 mi

Top 77%
×8story building
+106ft-24ft

Overall

20498

Males

12289

M60-64

12289

21M→35K

21.0 - 21.8 mi

Top 77%
×7story building
+17ft-86ft

Overall

20564

Males

12293

M60-64

12293

35K→23M

21.8 - 23.0 mi

Top 86%
×5story building
+23ft-63ft

Overall

22802

Males

13291

M60-64

13291

23M→24M

23.0 - 24.0 mi

Top 89%
×6story building
+12ft-82ft

Overall

23604

Males

13634

M60-64

13634

24M→40K

24.0 - 24.9 mi

Top 87%
×1story
+6ft-20ft

Overall

23114

Males

13369

M60-64

13369

40K→25.2M

24.9 - 25.2 mi

Top 87%
×1story
+13ft-16ft

Overall

23290

Males

13444

M60-64

13444

25.2M→Finish

25.2 - 26.2 mi

Top 88%
×2story building
+22ft-21ft

Overall

23344

Males

13494

M60-64

13494

Passing Analysis

Category:
Athletes Passed
2008
Passed By
710
Net Change
+1298
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23306
5K → 10K40294+308#23306#22998
10K → 15K39125+366#22998#22632
15K → 20K36811+357#22632#22275
20K → Half562+54#22275#22221
Half → 25K21519+196#22221#22025
25K → 30K18698+88#22025#21937
30K → 20M15110+141#21937#21796
20M → 21M8625+61#21796#21735
21M → 35K5112+39#21735#21696
35K → 23M40127-87#21696#21783
23M → 24M12112-100#21783#21883
24M → 40K2475-51#21883#21934
40K → 25.2M733-26#21934#21960
25.2M → Finish1967-48#21960#22008
TOTALS2008710+1298
📊

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