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BOSTON MARATHON 2023

Chris Rothwell

Bib: 27170•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M45-49)
#0 / 2252
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
32:26
Rank: #24559
Start → 5K
32:26 | 10:26/mi
10K· 6.21 mi
1:04:16
Rank: #24368 (+191)
5K → 10K
31:50 | 10:15/mi
15K· 9.32 mi
1:35:40
Rank: #24140 (+228)
10K → 15K
31:24 | 10:06/mi
20K· 12.43 mi
2:07:32
Rank: #23944 (+196)
15K → 20K
31:52 | 10:15/mi
Half· 13.11 mi
2:14:31
Rank: #23924 (+20)
20K → Half
6:59 | 10:14/mi
25K· 15.53 mi
2:40:00
Rank: #23772 (+152)
Half → 25K
25:29 | 10:31/mi
30K· 18.64 mi
3:13:17
Rank: #23560 (+212)
25K → 30K
33:17 | 10:43/mi
20M
3:28:06
Rank: #23488 (+72)
30K → 20M
14:49 | 10:54/mi
21M
3:39:23
Rank: #23387 (+101)
20M → 21M
11:17 | 11:17/mi
35K· 21.75 mi
3:47:30
Rank: #23374 (+13)
21M → 35K
8:07 | 10:51/mi
23M
4:00:57
Rank: #23279 (+95)
35K → 23M
13:27 | 10:45/mi
24M
4:11:32
Rank: #23248 (+31)
23M → 24M
10:35 | 10:35/mi
40K· 24.85 mi
4:21:11
Rank: #23233 (+15)
24M → 40K
9:39 | 11:17/mi
25.2M
4:25:20
Rank: #23217 (+16)
40K → 25.2M
4:09 | 12:02/mi
Finish· 26.22 mi
4:35:33
Rank: #23166 (+51)
25.2M → Finish
10:13 | 10:02/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:14:31
Pace10:16 /mi
2nd Half
Distance13.11 mi
Time2:21:02
Pace10:46 /mi
📊Positive Split: 4.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:54:2032:2610:2632:26
10:26
-
10K
6.21 mi12:26:101:04:1610:2131:50
10:15
-0:11
15K
9.32 mi12:57:341:35:4010:1631:24
10:06
-0:09
20K
12.43 mi13:29:262:07:3210:1631:52
10:15
+0:09
Half
13.11 mi13:36:252:14:3110:166:59
10:14
-0:01
25K
15.53 mi14:01:542:40:0010:1825:29
10:31
+0:17
30K
18.64 mi14:35:113:13:1710:2233:17
10:43
+0:12
20M
20.00 mi14:50:003:28:0610:2414:49
10:54
+0:11
21M
21.00 mi15:01:173:39:2310:2711:17
11:17
+0:23
35K
21.75 mi15:09:243:47:3010:288:07
10:51
-0:26
23M
23.00 mi15:22:514:00:5710:2913:27
10:45
-0:06
24M
24.00 mi15:33:264:11:3210:2910:35
10:35
-0:10
40K
24.85 mi15:43:054:21:1110:319:39
11:17
+0:42
25.2M
25.20 mi15:47:144:25:2010:324:09
12:02
+0:45
Finish
26.22 mi15:57:274:35:3310:3110:13
10:02
-2:00

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

10:02 /mi

Average Pace

10:31 /mi

Slowest Pace

12:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

4:10:28

91% of race

Time at Steady Pace

20:56

8% of race

Time at Slower Pace

4:09

2% of race

Average Pace: 10:31 /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 mi11:54:2032:2610:2632:26
10:26
#24559
10K
6.21 mi12:26:101:04:1610:2131:50
10:15
#24368
15K
9.32 mi12:57:341:35:4010:1631:24
10:06
#24140
20K
12.43 mi13:29:262:07:3210:1631:52
10:15
#23944
Half
13.11 mi13:36:252:14:3110:166:59
10:14
#23924
25K
15.53 mi14:01:542:40:0010:1825:29
10:31
#23772
30K
18.64 mi14:35:113:13:1710:2233:17
10:43
#23560
20M
20.00 mi14:50:003:28:0610:2414:49
10:54
#23488
21M
21.00 mi15:01:173:39:2310:2711:17
11:17
#23387
35K
21.75 mi15:09:243:47:3010:288:07
10:51
#23374
23M
23.00 mi15:22:514:00:5710:2913:27
10:45
#23279
24M
24.00 mi15:33:264:11:3210:2910:35
10:35
#23248
40K
24.85 mi15:43:054:21:1110:319:39
11:17
#23233
25.2M
25.20 mi15:47:144:25:2010:324:09
12:02
#23217
Finish
26.22 mi15:57:274:35:3310:3110:13
10:02
#23166
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi24559143431434323707(Top 89%)13955(Top 92%)13955(Top 620%)
10K6.21 mi3.10 mi24368+19114256+8714256+8724216(Top 91%)14186(Top 93%)14186(Top 630%)
15K9.32 mi3.11 mi24140+22814151+10514151+10523707(Top 89%)13955(Top 92%)13955(Top 620%)
20K12.43 mi3.11 mi23944+19614065+8614065+8623392(Top 88%)13809(Top 91%)13809(Top 613%)
Half13.11 mi0.68 mi23924+2014056+914056+923720(Top 89%)13945(Top 92%)13945(Top 619%)
25K15.53 mi2.42 mi23772+15213979+7713979+7723221(Top 87%)13694(Top 90%)13694(Top 608%)
30K18.64 mi3.11 mi23560+21213863+11613863+11622633(Top 85%)13350(Top 88%)13350(Top 593%)
20M20.00 mi1.36 mi23488+7213814+4913814+4922526(Top 85%)13244(Top 87%)13244(Top 588%)
21M21.00 mi1.00 mi23387+10113763+5113763+5121445(Top 81%)12720(Top 84%)12720(Top 565%)
35K21.75 mi0.75 mi23374+1313745+1813745+1823012(Top 86%)13393(Top 88%)13393(Top 595%)
23M23.00 mi1.25 mi23279+9513691+5413691+5421859(Top 82%)12839(Top 85%)12839(Top 570%)
24M24.00 mi1.00 mi23248+3113673+1813673+1822198(Top 83%)12969(Top 85%)12969(Top 576%)
40K24.85 mi0.85 mi23233+1513651+2213651+2222869(Top 86%)13252(Top 87%)13252(Top 588%)
25.2M25.20 mi0.35 mi23217+1613642+913642+922555(Top 85%)13110(Top 86%)13110(Top 582%)
Finish26.22 mi1.02 mi23166+5113611+3113611+3121822(Top 82%)12782(Top 84%)12782(Top 568%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 89%
×21stories
+97ft-345ft

Overall

23707

Males

13955

M45-49

13955

5K→10K

3.1 - 6.2 mi

Top 91%
×5stories
+79ft-138ft

Overall

24216

Males

14186

M45-49

14186

10K→15K

6.2 - 9.3 mi

Top 89%
×3stories
+67ft-78ft

Overall

23707

Males

13955

M45-49

13955

15K→20K

9.3 - 12.4 mi

Top 88%
×5stories
+106ft-86ft

Overall

23392

Males

13809

M45-49

13809

20K→Half

12.4 - 13.1 mi

Top 89%
×2stories
+19ft-37ft

Overall

23720

Males

13945

M45-49

13945

Half→25K

13.1 - 15.5 mi

Top 87%
×4stories
+66ft-88ft

Overall

23221

Males

13694

M45-49

13694

25K→30K

15.5 - 18.6 mi

Top 85%
×9stories
+181ft-148ft

Overall

22633

Males

13350

M45-49

13350

30K→20M

18.6 - 20.0 mi

Top 85%
×5stories
+64ft-50ft

Overall

22526

Males

13244

M45-49

13244

20M→21M

20.0 - 21.0 mi

Top 81%
×8stories
+106ft-24ft

Overall

21445

Males

12720

M45-49

12720

21M→35K

21.0 - 21.8 mi

Top 86%
×7stories
+17ft-86ft

Overall

23012

Males

13393

M45-49

13393

35K→23M

21.8 - 23.0 mi

Top 82%
×5stories
+23ft-63ft

Overall

21859

Males

12839

M45-49

12839

23M→24M

23.0 - 24.0 mi

Top 83%
×6stories
+12ft-82ft

Overall

22198

Males

12969

M45-49

12969

24M→40K

24.0 - 24.9 mi

Top 86%
×1story
+6ft-20ft

Overall

22869

Males

13252

M45-49

13252

40K→25.2M

24.9 - 25.2 mi

Top 85%
×1story
+13ft-16ft

Overall

22555

Males

13110

M45-49

13110

25.2M→Finish

25.2 - 26.2 mi

Top 82%
×2stories
+22ft-21ft

Overall

21822

Males

12782

M45-49

12782

Passing Analysis

Category:
Athletes Passed
1748
Passed By
355
Net Change
+1393
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24559
5K → 10K295104+191#24559#24368
10K → 15K27547+228#24368#24140
15K → 20K23034+196#24140#23944
20K → Half3616+20#23944#23924
Half → 25K16816+152#23924#23772
25K → 30K22816+212#23772#23560
30K → 20M9119+72#23560#23488
20M → 21M1065+101#23488#23387
21M → 35K3320+13#23387#23374
35K → 23M1016+95#23374#23279
23M → 24M4918+31#23279#23248
24M → 40K4934+15#23248#23233
40K → 25.2M3014+16#23233#23217
25.2M → Finish576+51#23217#23166
TOTALS1748355+1393
📊

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