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BOSTON MARATHON 2023

Bob Basse

Bib: 21666•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 (M65-69)
#0 / 549
Top 45%
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
8:47/mi
27:18
↑ 97↓ 3451.5%
10K· 6.21 mi
8:52/mi
54:51
↑ 79↓ 1380.4%
15K· 9.32 mi
8:58/mi
1:22:44
↑ 67↓ 78
20K· 12.43 mi
9:05/mi
1:50:56
↑ 106↓ 860.1%
Half· 13.11 mi
8:52/mi
1:56:59
↑ 19↓ 370.5%
25K· 15.53 mi
9:11/mi
2:19:16
↑ 66↓ 880.2%
30K· 18.64 mi
9:29/mi
2:48:44
↑ 181↓ 1480.2%
20M
9:18/mi
3:01:22
↑ 64↓ 500.2%
21M
9:55/mi
3:11:17
↑ 106↓ 241.6%
35K· 21.75 mi
8:55/mi
3:17:57
↑ 17↓ 861.7%
23M
9:25/mi
3:29:45
↑ 23↓ 630.6%
24M
9:04/mi
3:38:49
↓ 821.3%
40K· 24.85 mi
9:37/mi
3:47:02
↓ 200.3%
25.2M
10:18/mi
3:50:35
↑ 13↓ 160.2%
Finish· 26.22 mi
9:00/mi
3:59:45
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:56:59
Pace8:55 /mi
2nd Half
Distance13.11 mi
Time2:02:46
Pace9:22 /mi
📊Positive Split: 4.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:3527:188:4727:18
8:47
-
10K
6.21 mi11:50:0854:518:5027:33
8:52
+0:05
15K
9.32 mi12:18:011:22:448:5327:53
8:58
+0:06
20K
12.43 mi12:46:131:50:568:5628:12
9:05
+0:07
Half
13.11 mi12:52:161:56:598:556:03
8:52
-0:13
25K
15.53 mi13:14:332:19:168:5822:17
9:11
+0:19
30K
18.64 mi13:44:012:48:449:0329:28
9:29
+0:18
20M
20.00 mi13:56:393:01:229:0412:38
9:18
-0:11
21M
21.00 mi14:06:343:11:179:079:55
9:55
+0:37
35K
21.75 mi14:13:143:17:579:066:40
8:55
-1:00
23M
23.00 mi14:25:023:29:459:0711:48
9:25
+0:30
24M
24.00 mi14:34:063:38:499:079:04
9:04
-0:21
40K
24.85 mi14:42:193:47:029:088:13
9:37
+0:33
25.2M
25.20 mi14:45:523:50:359:093:33
10:18
+0:41
Finish
26.22 mi14:55:023:59:459:099:10
9:00
-1:18

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

8:47 /mi

Average Pace

9:09 /mi

Slowest Pace

10:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:46:17

94% of race

Time at Steady Pace

13:28

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:09 /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 mi11:22:3527:188:4727:18
8:47
#19385
10K
6.21 mi11:50:0854:518:5027:33
8:52
#19816
15K
9.32 mi12:18:011:22:448:5327:53
8:58
#20011
20K
12.43 mi12:46:131:50:568:5628:12
9:05
#19993
Half
13.11 mi12:52:161:56:598:556:03
8:52
#19990
25K
15.53 mi13:14:332:19:168:5822:17
9:11
#19963
30K
18.64 mi13:44:012:48:449:0329:28
9:29
#19830
20M
20.00 mi13:56:393:01:229:0412:38
9:18
#19680
21M
21.00 mi14:06:343:11:179:079:55
9:55
#19541
35K
21.75 mi14:13:143:17:579:066:40
8:55
#19473
23M
23.00 mi14:25:023:29:459:0711:48
9:25
#19392
24M
24.00 mi14:34:063:38:499:079:04
9:04
#19307
40K
24.85 mi14:42:193:47:029:088:13
9:37
#19290
25.2M
25.20 mi14:45:523:50:359:093:33
10:18
#19294
Finish
26.22 mi14:55:023:59:459:099:10
9:00
#19267
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM65-69Seg. OverallSeg. MalesSeg. M65-69
5K3.11 mi3.11 mi19385119341193420380(Top 77%)12469(Top 82%)12469(Top 2271%)
10K6.21 mi3.10 mi19816-43112133-19912133-19920256(Top 76%)12390(Top 82%)12390(Top 2257%)
15K9.32 mi3.11 mi20011-19512244-11112244-11120380(Top 77%)12469(Top 82%)12469(Top 2271%)
20K12.43 mi3.11 mi19993+1812252-812252-820025(Top 75%)12311(Top 81%)12311(Top 2242%)
Half13.11 mi0.68 mi19990+312251+112251+119810(Top 74%)12223(Top 81%)12223(Top 2226%)
25K15.53 mi2.42 mi19963+2712252-112252-119789(Top 74%)12187(Top 80%)12187(Top 2220%)
30K18.64 mi3.11 mi19830+13312177+7512177+7519366(Top 73%)11949(Top 79%)11949(Top 2177%)
20M20.00 mi1.36 mi19680+15012114+6312114+6318006(Top 68%)11241(Top 74%)11241(Top 2048%)
21M21.00 mi1.00 mi19541+13912035+7912035+7917710(Top 67%)11106(Top 73%)11106(Top 2023%)
35K21.75 mi0.75 mi19473+6812005+3012005+3017496(Top 66%)10934(Top 72%)10934(Top 1992%)
23M23.00 mi1.25 mi19392+8111970+3511970+3518017(Top 68%)11123(Top 73%)11123(Top 2026%)
24M24.00 mi1.00 mi19307+8511926+4411926+4417532(Top 66%)10871(Top 72%)10871(Top 1980%)
40K24.85 mi0.85 mi19290+1711907+1911907+1918712(Top 70%)11359(Top 75%)11359(Top 2069%)
25.2M25.20 mi0.35 mi19294-411906+111906+118433(Top 69%)11225(Top 74%)11225(Top 2045%)
Finish26.22 mi1.02 mi19267+2711884+2211884+2217949(Top 67%)11045(Top 73%)11045(Top 2012%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×21story building
+97ft-345ft

Overall

20380

Males

12469

M65-69

12469

5K→10K

3.1 - 6.2 mi

Top 76%
×5story building
+79ft-138ft

Overall

20256

Males

12390

M65-69

12390

10K→15K

6.2 - 9.3 mi

Top 77%
×3story building
+67ft-78ft

Overall

20380

Males

12469

M65-69

12469

15K→20K

9.3 - 12.4 mi

Top 75%
×5story building
+106ft-86ft

Overall

20025

Males

12311

M65-69

12311

20K→Half

12.4 - 13.1 mi

Top 74%
×2story building
+19ft-37ft

Overall

19810

Males

12223

M65-69

12223

Half→25K

13.1 - 15.5 mi

Top 74%
×4story building
+66ft-88ft

Overall

19789

Males

12187

M65-69

12187

25K→30K

15.5 - 18.6 mi

Top 73%
×9story building
+181ft-148ft

Overall

19366

Males

11949

M65-69

11949

30K→20M

18.6 - 20.0 mi

Top 68%
×5story building
+64ft-50ft

Overall

18006

Males

11241

M65-69

11241

20M→21M

20.0 - 21.0 mi

Top 67%
×8story building
+106ft-24ft

Overall

17710

Males

11106

M65-69

11106

21M→35K

21.0 - 21.8 mi

Top 66%
×7story building
+17ft-86ft

Overall

17496

Males

10934

M65-69

10934

35K→23M

21.8 - 23.0 mi

Top 68%
×5story building
+23ft-63ft

Overall

18017

Males

11123

M65-69

11123

23M→24M

23.0 - 24.0 mi

Top 66%
×6story building
+12ft-82ft

Overall

17532

Males

10871

M65-69

10871

24M→40K

24.0 - 24.9 mi

Top 70%
×1story
+6ft-20ft

Overall

18712

Males

11359

M65-69

11359

40K→25.2M

24.9 - 25.2 mi

Top 69%
×1story
+13ft-16ft

Overall

18433

Males

11225

M65-69

11225

25.2M→Finish

25.2 - 26.2 mi

Top 67%
×2story building
+22ft-21ft

Overall

17949

Males

11045

M65-69

11045

Passing Analysis

Category:
Athletes Passed
1605
Passed By
1487
Net Change
+118
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19385
5K → 10K152583-431#19385#19816
10K → 15K111306-195#19816#20011
15K → 20K180162+18#20011#19993
20K → Half3431+3#19993#19990
Half → 25K137110+27#19990#19963
25K → 30K234101+133#19963#19830
30K → 20M16111+150#19830#19680
20M → 21M15516+139#19680#19541
21M → 35K8315+68#19541#19473
35K → 23M11433+81#19473#19392
23M → 24M10116+85#19392#19307
24M → 40K5538+17#19307#19290
40K → 25.2M2428-4#19290#19294
25.2M → Finish6437+27#19294#19267
TOTALS16051487+118
📊

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