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BOSTON MARATHON 2023

Derek Chandler

Bib: 8955•M

MI

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 24%
Gender (Male)
#0 / 15176
Top 37%
Masters (Masters Men)
#0 / 9891
Top 23%
Division (M40-44)
#0 / 2241
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:09
Rank: #4767
Start → 5K
21:09 | 6:48/mi
10K· 6.21 mi
42:09
Rank: #4832 (-65)
5K → 10K
21:00 | 6:46/mi
15K· 9.32 mi
1:03:22
Rank: #4992 (-160)
10K → 15K
21:13 | 6:50/mi
20K· 12.43 mi
1:25:22
Rank: #5477 (-485)
15K → 20K
22:00 | 7:05/mi
Half· 13.11 mi
1:30:07
Rank: #5542 (-65)
20K → Half
4:45 | 6:58/mi
25K· 15.53 mi
1:48:03
Rank: #5943 (-401)
Half → 25K
17:56 | 7:24/mi
30K· 18.64 mi
2:12:03
Rank: #6314 (-371)
25K → 30K
24:00 | 7:43/mi
20M
2:22:32
Rank: #6389 (-75)
30K → 20M
10:29 | 7:43/mi
21M
2:30:33
Rank: #6389
20M → 21M
8:01 | 8:01/mi
35K· 21.75 mi
2:35:58
Rank: #6378 (+11)
21M → 35K
5:25 | 7:14/mi
23M
2:45:13
Rank: #6302 (+76)
35K → 23M
9:15 | 7:23/mi
24M
2:52:33
Rank: #6254 (+48)
23M → 24M
7:20 | 7:20/mi
40K· 24.85 mi
2:59:03
Rank: #6251 (+3)
24M → 40K
6:30 | 7:36/mi
25.2M
3:01:56
Rank: #6281 (-30)
40K → 25.2M
2:53 | 8:22/mi
Finish· 26.22 mi
3:09:20
Rank: #6263 (+18)
25.2M → Finish
7:24 | 7:16/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:30:07
Pace6:52 /mi
2nd Half
Distance13.11 mi
Time1:39:13
Pace7:34 /mi
📊Positive Split: 10.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:2021:096:4821:09
6:48
-
10K
6.21 mi11:07:2042:096:4721:00
6:46
-0:02
15K
9.32 mi11:28:331:03:226:4821:13
6:50
+0:04
20K
12.43 mi11:50:331:25:226:5222:00
7:05
+0:15
Half
13.11 mi11:55:181:30:076:524:45
6:58
-0:07
25K
15.53 mi12:13:141:48:036:5717:56
7:24
+0:26
30K
18.64 mi12:37:142:12:037:0524:00
7:43
+0:19
20M
20.00 mi12:47:432:22:327:0810:29
7:43
0:00
21M
21.00 mi12:55:442:30:337:108:01
8:01
+0:18
35K
21.75 mi13:01:092:35:587:105:25
7:14
-0:47
23M
23.00 mi13:10:242:45:137:119:15
7:23
+0:09
24M
24.00 mi13:17:442:52:337:117:20
7:20
-0:03
40K
24.85 mi13:24:142:59:037:126:30
7:36
+0:16
25.2M
25.20 mi13:27:073:01:567:132:53
8:22
+0:46
Finish
26.22 mi13:34:313:09:207:147:24
7:16
-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

6:46 /mi

Average Pace

7:14 /mi

Slowest Pace

8:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:30:07

48% of race

Time at Steady Pace

47:20

25% of race

Time at Slower Pace

51:53

27% of race

Average Pace: 7:13 /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 mi10:46:2021:096:4821:09
6:48
#4767
10K
6.21 mi11:07:2042:096:4721:00
6:46
#4832
15K
9.32 mi11:28:331:03:226:4821:13
6:50
#4992
20K
12.43 mi11:50:331:25:226:5222:00
7:05
#5477
Half
13.11 mi11:55:181:30:076:524:45
6:58
#5542
25K
15.53 mi12:13:141:48:036:5717:56
7:24
#5943
30K
18.64 mi12:37:142:12:037:0524:00
7:43
#6314
20M
20.00 mi12:47:432:22:327:0810:29
7:43
#6389
21M
21.00 mi12:55:442:30:337:108:01
8:01
#6389
35K
21.75 mi13:01:092:35:587:105:25
7:14
#6378
23M
23.00 mi13:10:242:45:137:119:15
7:23
#6302
24M
24.00 mi13:17:442:52:337:117:20
7:20
#6254
40K
24.85 mi13:24:142:59:037:126:30
7:36
#6251
25.2M
25.20 mi13:27:073:01:567:132:53
8:22
#6281
Finish
26.22 mi13:34:313:09:207:147:24
7:16
#6263
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi4767443744375392(Top 20%)4977(Top 33%)4977(Top 222%)
10K6.21 mi3.10 mi4832-654494-574494-574913(Top 18%)4558(Top 30%)4558(Top 203%)
15K9.32 mi3.11 mi4992-1604636-1424636-1425392(Top 20%)4977(Top 33%)4977(Top 222%)
20K12.43 mi3.11 mi5477-4855054-4185054-4186449(Top 24%)5803(Top 38%)5803(Top 259%)
Half13.11 mi0.68 mi5542-655116-625116-626330(Top 24%)5740(Top 38%)5740(Top 256%)
25K15.53 mi2.42 mi5943-4015435-3195435-3197971(Top 30%)6782(Top 45%)6782(Top 303%)
30K18.64 mi3.11 mi6314-3715698-2635698-2638808(Top 33%)7157(Top 47%)7157(Top 319%)
20M20.00 mi1.36 mi6389-755746-485746-488258(Top 31%)6743(Top 44%)6743(Top 301%)
21M21.00 mi1.00 mi63895740+65740+67419(Top 28%)6123(Top 40%)6123(Top 273%)
35K21.75 mi0.75 mi6378+115722+185722+186740(Top 25%)5726(Top 38%)5726(Top 256%)
23M23.00 mi1.25 mi6302+765650+725650+725783(Top 22%)5033(Top 33%)5033(Top 225%)
24M24.00 mi1.00 mi6254+485605+455605+456583(Top 25%)5473(Top 36%)5473(Top 244%)
40K24.85 mi0.85 mi6251+35590+155590+157300(Top 27%)5799(Top 38%)5799(Top 259%)
25.2M25.20 mi0.35 mi6281-305604-145604-148579(Top 32%)6480(Top 43%)6480(Top 289%)
Finish26.22 mi1.02 mi6263+185582+225582+226810(Top 26%)5445(Top 36%)5445(Top 243%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 20%
×21stories
+97ft-345ft

Overall

5392

Males

4977

M40-44

4977

5K→10K

3.1 - 6.2 mi

Top 18%
×5stories
+79ft-138ft

Overall

4913

Males

4558

M40-44

4558

10K→15K

6.2 - 9.3 mi

Top 20%
×3stories
+67ft-78ft

Overall

5392

Males

4977

M40-44

4977

15K→20K

9.3 - 12.4 mi

Top 24%
×5stories
+106ft-86ft

Overall

6449

Males

5803

M40-44

5803

20K→Half

12.4 - 13.1 mi

Top 24%
×2stories
+19ft-37ft

Overall

6330

Males

5740

M40-44

5740

Half→25K

13.1 - 15.5 mi

Top 30%
×4stories
+66ft-88ft

Overall

7971

Males

6782

M40-44

6782

25K→30K

15.5 - 18.6 mi

Top 33%
×9stories
+181ft-148ft

Overall

8808

Males

7157

M40-44

7157

30K→20M

18.6 - 20.0 mi

Top 31%
×5stories
+64ft-50ft

Overall

8258

Males

6743

M40-44

6743

20M→21M

20.0 - 21.0 mi

Top 28%
×8stories
+106ft-24ft

Overall

7419

Males

6123

M40-44

6123

21M→35K

21.0 - 21.8 mi

Top 25%
×7stories
+17ft-86ft

Overall

6740

Males

5726

M40-44

5726

35K→23M

21.8 - 23.0 mi

Top 22%
×5stories
+23ft-63ft

Overall

5783

Males

5033

M40-44

5033

23M→24M

23.0 - 24.0 mi

Top 25%
×6stories
+12ft-82ft

Overall

6583

Males

5473

M40-44

5473

24M→40K

24.0 - 24.9 mi

Top 27%
×1story
+6ft-20ft

Overall

7300

Males

5799

M40-44

5799

40K→25.2M

24.9 - 25.2 mi

Top 32%
×1story
+13ft-16ft

Overall

8579

Males

6480

M40-44

6480

25.2M→Finish

25.2 - 26.2 mi

Top 26%
×2stories
+22ft-21ft

Overall

6810

Males

5445

M40-44

5445

Passing Analysis

Category:
Athletes Passed
768
Passed By
2264
Net Change
-1496
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4767
5K → 10K174239-65#4767#4832
10K → 15K63223-160#4832#4992
15K → 20K27512-485#4992#5477
20K → Half368-65#5477#5542
Half → 25K14415-401#5542#5943
25K → 30K50421-371#5943#6314
30K → 20M33108-75#6314#6389
20M → 21M56560#6389#6389
21M → 35K4736+11#6389#6378
35K → 23M9923+76#6378#6302
23M → 24M8537+48#6302#6254
24M → 40K4542+3#6254#6251
40K → 25.2M1545-30#6251#6281
25.2M → Finish5739+18#6281#6263
TOTALS7682264-1496
📊

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