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BOSTON MARATHON 2023

Jason Johnson

Bib: 14393•M

FL

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
8:23/mi
26:03
↑ 97↓ 3451.5%
10K· 6.21 mi
8:18/mi
51:50
↑ 79↓ 1380.4%
15K· 9.32 mi
8:30/mi
1:18:13
↑ 67↓ 78
20K· 12.43 mi
8:37/mi
1:45:00
↑ 106↓ 860.1%
Half· 13.11 mi
8:26/mi
1:50:45
↑ 19↓ 370.5%
25K· 15.53 mi
8:42/mi
2:11:51
↑ 66↓ 880.2%
30K· 18.64 mi
8:54/mi
2:39:31
↑ 181↓ 1480.2%
20M
8:57/mi
2:51:41
↑ 64↓ 500.2%
21M
9:27/mi
3:01:08
↑ 106↓ 241.6%
35K· 21.75 mi
8:53/mi
3:07:47
↑ 17↓ 861.7%
23M
9:02/mi
3:19:05
↑ 23↓ 630.6%
24M
8:55/mi
3:28:00
↓ 821.3%
40K· 24.85 mi
9:02/mi
3:35:43
↓ 200.3%
25.2M
9:37/mi
3:39:02
↑ 13↓ 160.2%
Finish· 26.22 mi
8:50/mi
3:48:02
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:50:45
Pace8:27 /mi
2nd Half
Distance13.11 mi
Time1:57:17
Pace8:57 /mi
📊Positive Split: 5.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:2726:038:2326:03
8:23
-
10K
6.21 mi11:21:1451:508:2125:47
8:18
-0:05
15K
9.32 mi11:47:371:18:138:2426:23
8:30
+0:12
20K
12.43 mi12:14:241:45:008:2726:47
8:37
+0:07
Half
13.11 mi12:20:091:50:458:275:45
8:26
-0:11
25K
15.53 mi12:41:152:11:518:2921:06
8:42
+0:16
30K
18.64 mi13:08:552:39:318:3327:40
8:54
+0:12
20M
20.00 mi13:21:052:51:418:3512:10
8:57
+0:03
21M
21.00 mi13:30:323:01:088:389:27
9:27
+0:30
35K
21.75 mi13:37:113:07:478:386:39
8:53
-0:34
23M
23.00 mi13:48:293:19:058:3911:18
9:02
+0:09
24M
24.00 mi13:57:243:28:008:408:55
8:55
-0:07
40K
24.85 mi14:05:073:35:438:417:43
9:02
+0:07
25.2M
25.20 mi14:08:263:39:028:423:19
9:37
+0:35
Finish
26.22 mi14:17:263:48:028:429:00
8:50
-0:47

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

8:18 /mi

Average Pace

8:42 /mi

Slowest Pace

9:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:35:16

94% of race

Time at Steady Pace

12:46

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:42 /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 mi10:55:2726:038:2326:03
8:23
#16758
10K
6.21 mi11:21:1451:508:2125:47
8:18
#16787
15K
9.32 mi11:47:371:18:138:2426:23
8:30
#17143
20K
12.43 mi12:14:241:45:008:2726:47
8:37
#17245
Half
13.11 mi12:20:091:50:458:275:45
8:26
#17244
25K
15.53 mi12:41:152:11:518:2921:06
8:42
#17246
30K
18.64 mi13:08:552:39:318:3327:40
8:54
#17099
20M
20.00 mi13:21:052:51:418:3512:10
8:57
#17028
21M
21.00 mi13:30:323:01:088:389:27
9:27
#16951
35K
21.75 mi13:37:113:07:478:386:39
8:53
#16963
23M
23.00 mi13:48:293:19:058:3911:18
9:02
#16917
24M
24.00 mi13:57:243:28:008:408:55
8:55
#16913
40K
24.85 mi14:05:073:35:438:417:43
9:02
#16868
25.2M
25.20 mi14:08:263:39:028:423:19
9:37
#16856
Finish
26.22 mi14:17:263:48:028:429:00
8:50
#16859
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi16758109701097017738(Top 67%)11356(Top 75%)11356(Top 799%)
10K6.21 mi3.10 mi16787-2910999-2910999-2916913(Top 64%)11075(Top 73%)11075(Top 779%)
15K9.32 mi3.11 mi17143-35611128-12911128-12917738(Top 67%)11356(Top 75%)11356(Top 799%)
20K12.43 mi3.11 mi17245-10211150-2211150-2217616(Top 66%)11295(Top 74%)11295(Top 794%)
Half13.11 mi0.68 mi17244+111149+111149+117257(Top 65%)11188(Top 74%)11188(Top 787%)
25K15.53 mi2.42 mi17246-211140+911140+917377(Top 65%)11139(Top 73%)11139(Top 783%)
30K18.64 mi3.11 mi17099+14711054+8611054+8616669(Top 63%)10777(Top 71%)10777(Top 758%)
20M20.00 mi1.36 mi17028+7111021+3311021+3316279(Top 61%)10525(Top 69%)10525(Top 740%)
21M21.00 mi1.00 mi16951+7710972+4910972+4915714(Top 59%)10232(Top 67%)10232(Top 720%)
35K21.75 mi0.75 mi16963-1210975-310975-317362(Top 65%)10861(Top 72%)10861(Top 764%)
23M23.00 mi1.25 mi16917+4610924+5110924+5116170(Top 61%)10317(Top 68%)10317(Top 726%)
24M24.00 mi1.00 mi16913+410905+1910905+1916827(Top 63%)10549(Top 70%)10549(Top 742%)
40K24.85 mi0.85 mi16868+4510864+4110864+4116257(Top 61%)10238(Top 67%)10238(Top 720%)
25.2M25.20 mi0.35 mi16856+1210852+1210852+1215708(Top 59%)9996(Top 66%)9996(Top 703%)
Finish26.22 mi1.02 mi16859-310846+610846+617183(Top 65%)10685(Top 70%)10685(Top 751%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 67%
×21story building
+97ft-345ft

Overall

17738

Males

11356

M55-59

11356

5K→10K

3.1 - 6.2 mi

Top 64%
×5story building
+79ft-138ft

Overall

16913

Males

11075

M55-59

11075

10K→15K

6.2 - 9.3 mi

Top 67%
×3story building
+67ft-78ft

Overall

17738

Males

11356

M55-59

11356

15K→20K

9.3 - 12.4 mi

Top 66%
×5story building
+106ft-86ft

Overall

17616

Males

11295

M55-59

11295

20K→Half

12.4 - 13.1 mi

Top 65%
×2story building
+19ft-37ft

Overall

17257

Males

11188

M55-59

11188

Half→25K

13.1 - 15.5 mi

Top 65%
×4story building
+66ft-88ft

Overall

17377

Males

11139

M55-59

11139

25K→30K

15.5 - 18.6 mi

Top 63%
×9story building
+181ft-148ft

Overall

16669

Males

10777

M55-59

10777

30K→20M

18.6 - 20.0 mi

Top 61%
×5story building
+64ft-50ft

Overall

16279

Males

10525

M55-59

10525

20M→21M

20.0 - 21.0 mi

Top 59%
×8story building
+106ft-24ft

Overall

15714

Males

10232

M55-59

10232

21M→35K

21.0 - 21.8 mi

Top 65%
×7story building
+17ft-86ft

Overall

17362

Males

10861

M55-59

10861

35K→23M

21.8 - 23.0 mi

Top 61%
×5story building
+23ft-63ft

Overall

16170

Males

10317

M55-59

10317

23M→24M

23.0 - 24.0 mi

Top 63%
×6story building
+12ft-82ft

Overall

16827

Males

10549

M55-59

10549

24M→40K

24.0 - 24.9 mi

Top 61%
×1story
+6ft-20ft

Overall

16257

Males

10238

M55-59

10238

40K→25.2M

24.9 - 25.2 mi

Top 59%
×1story
+13ft-16ft

Overall

15708

Males

9996

M55-59

9996

25.2M→Finish

25.2 - 26.2 mi

Top 65%
×2story building
+22ft-21ft

Overall

17183

Males

10685

M55-59

10685

Passing Analysis

Category:
Athletes Passed
1533
Passed By
1634
Net Change
-101
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16758
5K → 10K293322-29#16758#16787
10K → 15K82438-356#16787#17143
15K → 20K135237-102#17143#17245
20K → Half3130+1#17245#17244
Half → 25K124126-2#17244#17246
25K → 30K24295+147#17246#17099
30K → 20M11645+71#17099#17028
20M → 21M11942+77#17028#16951
21M → 35K3951-12#16951#16963
35K → 23M11064+46#16963#16917
23M → 24M5955+4#16917#16913
24M → 40K7934+45#16913#16868
40K → 25.2M3220+12#16868#16856
25.2M → Finish7275-3#16856#16859
TOTALS15331634-101
📊

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