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BOSTON MARATHON 2023

Darrell Janson

Bib: 21930•M

OR

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
Top 24%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:28
Rank: #13033
Start → 5K
24:28 | 7:53/mi
10K· 6.21 mi
48:46
Rank: #13168 (-135)
5K → 10K
24:18 | 7:49/mi
15K· 9.32 mi
1:13:33
Rank: #13501 (-333)
10K → 15K
24:47 | 7:59/mi
20K· 12.43 mi
1:38:55
Rank: #13775 (-274)
15K → 20K
25:22 | 8:10/mi
Half· 13.11 mi
1:44:33
Rank: #13901 (-126)
20K → Half
5:38 | 8:15/mi
25K· 15.53 mi
2:04:47
Rank: #14121 (-220)
Half → 25K
20:14 | 8:21/mi
30K· 18.64 mi
2:31:09
Rank: #14162 (-41)
25K → 30K
26:22 | 8:29/mi
20M
2:42:51
Rank: #14172 (-10)
30K → 20M
11:42 | 8:37/mi
21M
2:51:45
Rank: #14056 (+116)
20M → 21M
8:54 | 8:54/mi
35K· 21.75 mi
2:57:59
Rank: #14037 (+19)
21M → 35K
6:14 | 8:20/mi
23M
3:08:43
Rank: #13999 (+38)
35K → 23M
10:44 | 8:34/mi
24M
3:17:06
Rank: #13963 (+36)
23M → 24M
8:23 | 8:23/mi
40K· 24.85 mi
3:24:24
Rank: #13921 (+42)
24M → 40K
7:18 | 8:32/mi
25.2M
3:27:33
Rank: #13906 (+15)
40K → 25.2M
3:09 | 9:08/mi
Finish· 26.22 mi
3:36:13
Rank: #13974 (-68)
25.2M → Finish
8:40 | 8:30/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:33
Pace7:59 /mi
2nd Half
Distance13.11 mi
Time1:51:40
Pace8:31 /mi
📊Positive Split: 6.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:1324:287:5324:28
7:53
-
10K
6.21 mi11:44:3148:467:5124:18
7:49
-0:04
15K
9.32 mi12:09:181:13:337:5324:47
7:59
+0:10
20K
12.43 mi12:34:401:38:557:5825:22
8:10
+0:11
Half
13.11 mi12:40:181:44:337:595:38
8:15
+0:05
25K
15.53 mi13:00:322:04:478:0220:14
8:21
+0:06
30K
18.64 mi13:26:542:31:098:0726:22
8:29
+0:08
20M
20.00 mi13:38:362:42:518:0911:42
8:37
+0:08
21M
21.00 mi13:47:302:51:458:118:54
8:54
+0:17
35K
21.75 mi13:53:442:57:598:116:14
8:20
-0:34
23M
23.00 mi14:04:283:08:438:1210:44
8:34
+0:14
24M
24.00 mi14:12:513:17:068:138:23
8:23
-0:11
40K
24.85 mi14:20:093:24:248:137:18
8:32
+0:09
25.2M
25.20 mi14:23:183:27:338:143:09
9:08
+0:36
Finish
26.22 mi14:31:583:36:138:158:40
8:30
-0:38

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

7:49 /mi

Average Pace

8:15 /mi

Slowest Pace

9:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:12:28

89% of race

Time at Steady Pace

23:45

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:15 /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 mi11:20:1324:287:5324:28
7:53
#13033
10K
6.21 mi11:44:3148:467:5124:18
7:49
#13168
15K
9.32 mi12:09:181:13:337:5324:47
7:59
#13501
20K
12.43 mi12:34:401:38:557:5825:22
8:10
#13775
Half
13.11 mi12:40:181:44:337:595:38
8:15
#13901
25K
15.53 mi13:00:322:04:478:0220:14
8:21
#14121
30K
18.64 mi13:26:542:31:098:0726:22
8:29
#14162
20M
20.00 mi13:38:362:42:518:0911:42
8:37
#14172
21M
21.00 mi13:47:302:51:458:118:54
8:54
#14056
35K
21.75 mi13:53:442:57:598:116:14
8:20
#14037
23M
23.00 mi14:04:283:08:438:1210:44
8:34
#13999
24M
24.00 mi14:12:513:17:068:138:23
8:23
#13963
40K
24.85 mi14:20:093:24:248:137:18
8:32
#13921
25.2M
25.20 mi14:23:183:27:338:143:09
9:08
#13906
Finish
26.22 mi14:31:583:36:138:158:40
8:30
#13974
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi130339556955614184(Top 53%)9974(Top 66%)9974(Top 899%)
10K6.21 mi3.10 mi13168-1359602-469602-4613307(Top 50%)9676(Top 64%)9676(Top 872%)
15K9.32 mi3.11 mi13501-3339733-1319733-13114184(Top 53%)9974(Top 66%)9974(Top 899%)
20K12.43 mi3.11 mi13775-2749809-769809-7614692(Top 55%)10152(Top 67%)10152(Top 915%)
Half13.11 mi0.68 mi13901-1269857-489857-4816136(Top 61%)10721(Top 71%)10721(Top 966%)
25K15.53 mi2.42 mi14121-2209919-629919-6215212(Top 57%)10223(Top 67%)10223(Top 921%)
30K18.64 mi3.11 mi14162-419906+139906+1314218(Top 53%)9734(Top 64%)9734(Top 877%)
20M20.00 mi1.36 mi14172-109881+259881+2514302(Top 54%)9686(Top 64%)9686(Top 873%)
21M21.00 mi1.00 mi14056+1169819+629819+6212832(Top 48%)8960(Top 59%)8960(Top 807%)
35K21.75 mi0.75 mi14037+199796+239796+2314257(Top 54%)9535(Top 63%)9535(Top 859%)
23M23.00 mi1.25 mi13999+389751+459751+4513647(Top 51%)9207(Top 61%)9207(Top 829%)
24M24.00 mi1.00 mi13963+369711+409711+4013742(Top 52%)9201(Top 61%)9201(Top 829%)
40K24.85 mi0.85 mi13921+429680+319680+3113568(Top 51%)9044(Top 60%)9044(Top 815%)
25.2M25.20 mi0.35 mi13906+159662+189662+1813234(Top 50%)8875(Top 58%)8875(Top 800%)
Finish26.22 mi1.02 mi13974-689677-159677-1515427(Top 58%)9912(Top 65%)9912(Top 893%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 53%
×21stories
+97ft-345ft

Overall

14184

Males

9974

M60-64

9974

5K→10K

3.1 - 6.2 mi

Top 50%
×5stories
+79ft-138ft

Overall

13307

Males

9676

M60-64

9676

10K→15K

6.2 - 9.3 mi

Top 53%
×3stories
+67ft-78ft

Overall

14184

Males

9974

M60-64

9974

15K→20K

9.3 - 12.4 mi

Top 55%
×5stories
+106ft-86ft

Overall

14692

Males

10152

M60-64

10152

20K→Half

12.4 - 13.1 mi

Top 61%
×2stories
+19ft-37ft

Overall

16136

Males

10721

M60-64

10721

Half→25K

13.1 - 15.5 mi

Top 57%
×4stories
+66ft-88ft

Overall

15212

Males

10223

M60-64

10223

25K→30K

15.5 - 18.6 mi

Top 53%
×9stories
+181ft-148ft

Overall

14218

Males

9734

M60-64

9734

30K→20M

18.6 - 20.0 mi

Top 54%
×5stories
+64ft-50ft

Overall

14302

Males

9686

M60-64

9686

20M→21M

20.0 - 21.0 mi

Top 48%
×8stories
+106ft-24ft

Overall

12832

Males

8960

M60-64

8960

21M→35K

21.0 - 21.8 mi

Top 54%
×7stories
+17ft-86ft

Overall

14257

Males

9535

M60-64

9535

35K→23M

21.8 - 23.0 mi

Top 51%
×5stories
+23ft-63ft

Overall

13647

Males

9207

M60-64

9207

23M→24M

23.0 - 24.0 mi

Top 52%
×6stories
+12ft-82ft

Overall

13742

Males

9201

M60-64

9201

24M→40K

24.0 - 24.9 mi

Top 51%
×1story
+6ft-20ft

Overall

13568

Males

9044

M60-64

9044

40K→25.2M

24.9 - 25.2 mi

Top 50%
×1story
+13ft-16ft

Overall

13234

Males

8875

M60-64

8875

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2stories
+22ft-21ft

Overall

15427

Males

9912

M60-64

9912

Passing Analysis

Category:
Athletes Passed
1345
Passed By
2286
Net Change
-941
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13033
5K → 10K246381-135#13033#13168
10K → 15K100433-333#13168#13501
15K → 20K100374-274#13501#13775
20K → Half12138-126#13775#13901
Half → 25K68288-220#13901#14121
25K → 30K176217-41#14121#14162
30K → 20M8090-10#14162#14172
20M → 21M15741+116#14172#14056
21M → 35K5435+19#14056#14037
35K → 23M10769+38#14037#13999
23M → 24M8145+36#13999#13963
24M → 40K8240+42#13963#13921
40K → 25.2M4025+15#13921#13906
25.2M → Finish42110-68#13906#13974
TOTALS13452286-941
📊

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