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BOSTON MARATHON 2023

John Bacon

Bib: 23327•M

VA

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
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:19
Rank: #19413
Start → 5K
27:19 | 8:48/mi
10K· 6.21 mi
54:32
Rank: #19549 (-136)
5K → 10K
27:13 | 8:46/mi
15K· 9.32 mi
1:22:38
Rank: #19946 (-397)
10K → 15K
28:06 | 9:03/mi
20K· 12.43 mi
1:51:08
Rank: #20074 (-128)
15K → 20K
28:30 | 9:10/mi
Half· 13.11 mi
1:57:10
Rank: #20065 (+9)
20K → Half
6:02 | 8:51/mi
25K· 15.53 mi
2:19:42
Rank: #20085 (-20)
Half → 25K
22:32 | 9:18/mi
30K· 18.64 mi
2:49:51
Rank: #20110 (-25)
25K → 30K
30:09 | 9:42/mi
20M
3:03:20
Rank: #20114 (-4)
30K → 20M
13:29 | 9:55/mi
21M
3:13:54
Rank: #20095 (+19)
20M → 21M
10:34 | 10:34/mi
35K· 21.75 mi
3:21:02
Rank: #20089 (+6)
21M → 35K
7:08 | 9:32/mi
23M
3:33:06
Rank: #19999 (+90)
35K → 23M
12:04 | 9:38/mi
24M
3:42:39
Rank: #19986 (+13)
23M → 24M
9:33 | 9:33/mi
40K· 24.85 mi
3:50:51
Rank: #19932 (+54)
24M → 40K
8:12 | 9:35/mi
25.2M
3:54:19
Rank: #19899 (+33)
40K → 25.2M
3:28 | 10:03/mi
Finish· 26.22 mi
4:03:26
Rank: #19819 (+80)
25.2M → Finish
9:07 | 8:57/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:57:10
Pace8:56 /mi
2nd Half
Distance13.11 mi
Time2:06:16
Pace9:38 /mi
📊Positive Split: 7.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:1127:198:4827:19
8:48
-
10K
6.21 mi11:49:2454:328:4727:13
8:46
-0:02
15K
9.32 mi12:17:301:22:388:5228:06
9:03
+0:17
20K
12.43 mi12:46:001:51:088:5728:30
9:10
+0:07
Half
13.11 mi12:52:021:57:108:566:02
8:51
-0:19
25K
15.53 mi13:14:342:19:429:0022:32
9:18
+0:27
30K
18.64 mi13:44:432:49:519:0730:09
9:42
+0:24
20M
20.00 mi13:58:123:03:209:1013:29
9:55
+0:13
21M
21.00 mi14:08:463:13:549:1410:34
10:34
+0:39
35K
21.75 mi14:15:543:21:029:157:08
9:32
-1:02
23M
23.00 mi14:27:583:33:069:1612:04
9:38
+0:06
24M
24.00 mi14:37:313:42:399:179:33
9:33
-0:05
40K
24.85 mi14:45:433:50:519:178:12
9:35
+0:02
25.2M
25.20 mi14:49:113:54:199:183:28
10:03
+0:28
Finish
26.22 mi14:58:184:03:269:179:07
8:57
-1:06

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

8:46 /mi

Average Pace

9:17 /mi

Slowest Pace

10:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:06:17

52% of race

Time at Steady Pace

1:29:38

37% of race

Time at Slower Pace

27:31

11% of race

Average Pace: 9:17 /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 mi11:22:1127:198:4827:19
8:48
#19413
10K
6.21 mi11:49:2454:328:4727:13
8:46
#19549
15K
9.32 mi12:17:301:22:388:5228:06
9:03
#19946
20K
12.43 mi12:46:001:51:088:5728:30
9:10
#20074
Half
13.11 mi12:52:021:57:108:566:02
8:51
#20065
25K
15.53 mi13:14:342:19:429:0022:32
9:18
#20085
30K
18.64 mi13:44:432:49:519:0730:09
9:42
#20110
20M
20.00 mi13:58:123:03:209:1013:29
9:55
#20114
21M
21.00 mi14:08:463:13:549:1410:34
10:34
#20095
35K
21.75 mi14:15:543:21:029:157:08
9:32
#20089
23M
23.00 mi14:27:583:33:069:1612:04
9:38
#19999
24M
24.00 mi14:37:313:42:399:179:33
9:33
#19986
40K
24.85 mi14:45:433:50:519:178:12
9:35
#19932
25.2M
25.20 mi14:49:113:54:199:183:28
10:03
#19899
Finish
26.22 mi14:58:184:03:269:179:07
8:57
#19819
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM65-69Seg. OverallSeg. MalesSeg. M65-69
5K3.11 mi3.11 mi19413119431194320697(Top 78%)12606(Top 83%)12606(Top 2296%)
10K6.21 mi3.10 mi19549-13612031-8812031-8819726(Top 74%)12176(Top 80%)12176(Top 2218%)
15K9.32 mi3.11 mi19946-39712222-19112222-19120697(Top 78%)12606(Top 83%)12606(Top 2296%)
20K12.43 mi3.11 mi20074-12812293-7112293-7120449(Top 77%)12498(Top 82%)12498(Top 2277%)
Half13.11 mi0.68 mi20065+912290+312290+319693(Top 74%)12178(Top 80%)12178(Top 2218%)
25K15.53 mi2.42 mi20085-2012311-2112311-2120176(Top 76%)12361(Top 81%)12361(Top 2252%)
30K18.64 mi3.11 mi20110-2512302+912302+920153(Top 76%)12273(Top 81%)12273(Top 2236%)
20M20.00 mi1.36 mi20114-412284+1812284+1820228(Top 76%)12209(Top 80%)12209(Top 2224%)
21M21.00 mi1.00 mi20095+1912270+1412270+1419789(Top 74%)11957(Top 79%)11957(Top 2178%)
35K21.75 mi0.75 mi20089+612261+912261+919942(Top 75%)12023(Top 79%)12023(Top 2190%)
23M23.00 mi1.25 mi19999+9012210+5112210+5118861(Top 71%)11514(Top 76%)11514(Top 2097%)
24M24.00 mi1.00 mi19986+1312204+612204+619383(Top 73%)11708(Top 77%)11708(Top 2133%)
40K24.85 mi0.85 mi19932+5412169+3512169+3518639(Top 70%)11329(Top 75%)11329(Top 2064%)
25.2M25.20 mi0.35 mi19899+3312155+1412155+1417580(Top 66%)10837(Top 71%)10837(Top 1974%)
Finish26.22 mi1.02 mi19819+8012114+4112114+4117697(Top 66%)10928(Top 72%)10928(Top 1991%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 78%
×21stories
+97ft-345ft

Overall

20697

Males

12606

M65-69

12606

5K→10K

3.1 - 6.2 mi

Top 74%
×5stories
+79ft-138ft

Overall

19726

Males

12176

M65-69

12176

10K→15K

6.2 - 9.3 mi

Top 78%
×3stories
+67ft-78ft

Overall

20697

Males

12606

M65-69

12606

15K→20K

9.3 - 12.4 mi

Top 77%
×5stories
+106ft-86ft

Overall

20449

Males

12498

M65-69

12498

20K→Half

12.4 - 13.1 mi

Top 74%
×2stories
+19ft-37ft

Overall

19693

Males

12178

M65-69

12178

Half→25K

13.1 - 15.5 mi

Top 76%
×4stories
+66ft-88ft

Overall

20176

Males

12361

M65-69

12361

25K→30K

15.5 - 18.6 mi

Top 76%
×9stories
+181ft-148ft

Overall

20153

Males

12273

M65-69

12273

30K→20M

18.6 - 20.0 mi

Top 76%
×5stories
+64ft-50ft

Overall

20228

Males

12209

M65-69

12209

20M→21M

20.0 - 21.0 mi

Top 74%
×8stories
+106ft-24ft

Overall

19789

Males

11957

M65-69

11957

21M→35K

21.0 - 21.8 mi

Top 75%
×7stories
+17ft-86ft

Overall

19942

Males

12023

M65-69

12023

35K→23M

21.8 - 23.0 mi

Top 71%
×5stories
+23ft-63ft

Overall

18861

Males

11514

M65-69

11514

23M→24M

23.0 - 24.0 mi

Top 73%
×6stories
+12ft-82ft

Overall

19383

Males

11708

M65-69

11708

24M→40K

24.0 - 24.9 mi

Top 70%
×1story
+6ft-20ft

Overall

18639

Males

11329

M65-69

11329

40K→25.2M

24.9 - 25.2 mi

Top 66%
×1story
+13ft-16ft

Overall

17580

Males

10837

M65-69

10837

25.2M→Finish

25.2 - 26.2 mi

Top 66%
×2stories
+22ft-21ft

Overall

17697

Males

10928

M65-69

10928

Passing Analysis

Category:
Athletes Passed
1353
Passed By
1759
Net Change
-406
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19413
5K → 10K252388-136#19413#19549
10K → 15K63460-397#19549#19946
15K → 20K133261-128#19946#20074
20K → Half3223+9#20074#20065
Half → 25K126146-20#20065#20085
25K → 30K145170-25#20085#20110
30K → 20M8993-4#20110#20114
20M → 21M8061+19#20114#20095
21M → 35K4842+6#20095#20089
35K → 23M11727+90#20089#19999
23M → 24M5845+13#19999#19986
24M → 40K7723+54#19986#19932
40K → 25.2M418+33#19932#19899
25.2M → Finish9212+80#19899#19819
TOTALS13531759-406
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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