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BOSTON MARATHON 2023

Christopher Irwin

Bib: 8193•M

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 19%
Gender (Male)
#0 / 15176
Top 31%
Masters (Masters Men)
#0 / 9891
Top 17%
Division (M45-49)
#0 / 2252
Top 20%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:16
Rank: #5101
Start → 5K
21:16 | 6:51/mi
10K· 6.21 mi
42:19
Rank: #5055 (+46)
5K → 10K
21:03 | 6:47/mi
15K· 9.32 mi
1:03:21
Rank: #4974 (+81)
10K → 15K
21:02 | 6:46/mi
20K· 12.43 mi
1:24:43
Rank: #4996 (-22)
15K → 20K
21:22 | 6:53/mi
Half· 13.11 mi
1:29:21
Rank: #4999 (-3)
20K → Half
4:38 | 6:47/mi
25K· 15.53 mi
1:46:06
Rank: #4996 (+3)
Half → 25K
16:45 | 6:55/mi
30K· 18.64 mi
2:08:22
Rank: #5053 (-57)
25K → 30K
22:16 | 7:10/mi
20M
2:18:25
Rank: #5154 (-101)
30K → 20M
10:03 | 7:24/mi
21M
2:26:10
Rank: #5159 (-5)
20M → 21M
7:45 | 7:45/mi
35K· 21.75 mi
2:31:24
Rank: #5140 (+19)
21M → 35K
5:14 | 7:00/mi
23M
2:40:49
Rank: #5177 (-37)
35K → 23M
9:25 | 7:31/mi
24M
2:48:14
Rank: #5201 (-24)
23M → 24M
7:25 | 7:25/mi
40K· 24.85 mi
2:54:33
Rank: #5185 (+16)
24M → 40K
6:19 | 7:23/mi
25.2M
2:57:18
Rank: #5167 (+18)
40K → 25.2M
2:45 | 7:58/mi
Finish· 26.22 mi
3:04:08
Rank: #5071 (+96)
25.2M → Finish
6:50 | 6:42/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:21
Pace6:49 /mi
2nd Half
Distance13.11 mi
Time1:34:47
Pace7:14 /mi
📊Positive Split: 6.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:3121:166:5121:16
6:51
-
10K
6.21 mi11:07:3442:196:4921:03
6:47
-0:04
15K
9.32 mi11:28:361:03:216:4821:02
6:46
-0:01
20K
12.43 mi11:49:581:24:436:4921:22
6:53
+0:07
Half
13.11 mi11:54:361:29:216:494:38
6:47
-0:06
25K
15.53 mi12:11:211:46:066:5016:45
6:55
+0:08
30K
18.64 mi12:33:372:08:226:5322:16
7:10
+0:15
20M
20.00 mi12:43:402:18:256:5510:03
7:24
+0:14
21M
21.00 mi12:51:252:26:106:587:45
7:45
+0:21
35K
21.75 mi12:56:392:31:246:585:14
7:00
-0:45
23M
23.00 mi13:06:042:40:497:009:25
7:31
+0:31
24M
24.00 mi13:13:292:48:147:017:25
7:25
-0:06
40K
24.85 mi13:19:482:54:337:016:19
7:23
-0:02
25.2M
25.20 mi13:22:332:57:187:022:45
7:58
+0:35
Finish
26.22 mi13:29:233:04:087:026:50
6:42
-1:16

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

6:42 /mi

Average Pace

7:02 /mi

Slowest Pace

7:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:20:26

76% of race

Time at Steady Pace

40:57

22% of race

Time at Slower Pace

2:45

1% of race

Average Pace: 7:01 /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 mi10:46:3121:166:5121:16
6:51
#5101
10K
6.21 mi11:07:3442:196:4921:03
6:47
#5055
15K
9.32 mi11:28:361:03:216:4821:02
6:46
#4974
20K
12.43 mi11:49:581:24:436:4921:22
6:53
#4996
Half
13.11 mi11:54:361:29:216:494:38
6:47
#4999
25K
15.53 mi12:11:211:46:066:5016:45
6:55
#4996
30K
18.64 mi12:33:372:08:226:5322:16
7:10
#5053
20M
20.00 mi12:43:402:18:256:5510:03
7:24
#5154
21M
21.00 mi12:51:252:26:106:587:45
7:45
#5159
35K
21.75 mi12:56:392:31:246:585:14
7:00
#5140
23M
23.00 mi13:06:042:40:497:009:25
7:31
#5177
24M
24.00 mi13:13:292:48:147:017:25
7:25
#5201
40K
24.85 mi13:19:482:54:337:016:19
7:23
#5185
25.2M
25.20 mi13:22:332:57:187:022:45
7:58
#5167
Finish
26.22 mi13:29:233:04:087:026:50
6:42
#5071
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi5101473247324817(Top 18%)4488(Top 30%)4488(Top 199%)
10K6.21 mi3.10 mi5055+464684+484684+485059(Top 19%)4682(Top 31%)4682(Top 208%)
15K9.32 mi3.11 mi4974+814618+664618+664817(Top 18%)4488(Top 30%)4488(Top 199%)
20K12.43 mi3.11 mi4996-224644-264644-265171(Top 19%)4781(Top 32%)4781(Top 212%)
Half13.11 mi0.68 mi4999-34647-34647-35180(Top 19%)4790(Top 32%)4790(Top 213%)
25K15.53 mi2.42 mi4996+34641+64641+65012(Top 19%)4637(Top 31%)4637(Top 206%)
30K18.64 mi3.11 mi5053-574687-464687-465304(Top 20%)4839(Top 32%)4839(Top 215%)
20M20.00 mi1.36 mi5154-1014766-794766-796139(Top 23%)5391(Top 36%)5391(Top 239%)
21M21.00 mi1.00 mi5159-54763+34763+35878(Top 22%)5105(Top 34%)5105(Top 227%)
35K21.75 mi0.75 mi5140+194738+254738+255293(Top 20%)4721(Top 31%)4721(Top 210%)
23M23.00 mi1.25 mi5177-374759-214759-216512(Top 24%)5508(Top 36%)5508(Top 245%)
24M24.00 mi1.00 mi5201-244773-144773-147122(Top 27%)5772(Top 38%)5772(Top 256%)
40K24.85 mi0.85 mi5185+164756+174756+175961(Top 22%)4985(Top 33%)4985(Top 221%)
25.2M25.20 mi0.35 mi5167+184740+164740+166263(Top 24%)5099(Top 34%)5099(Top 226%)
Finish26.22 mi1.02 mi5071+964656+844656+843560(Top 13%)3185(Top 21%)3185(Top 141%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 18%
×21stories
+97ft-345ft

Overall

4817

Males

4488

M45-49

4488

5K→10K

3.1 - 6.2 mi

Top 19%
×5stories
+79ft-138ft

Overall

5059

Males

4682

M45-49

4682

10K→15K

6.2 - 9.3 mi

Top 18%
×3stories
+67ft-78ft

Overall

4817

Males

4488

M45-49

4488

15K→20K

9.3 - 12.4 mi

Top 19%
×5stories
+106ft-86ft

Overall

5171

Males

4781

M45-49

4781

20K→Half

12.4 - 13.1 mi

Top 19%
×2stories
+19ft-37ft

Overall

5180

Males

4790

M45-49

4790

Half→25K

13.1 - 15.5 mi

Top 19%
×4stories
+66ft-88ft

Overall

5012

Males

4637

M45-49

4637

25K→30K

15.5 - 18.6 mi

Top 20%
×9stories
+181ft-148ft

Overall

5304

Males

4839

M45-49

4839

30K→20M

18.6 - 20.0 mi

Top 23%
×5stories
+64ft-50ft

Overall

6139

Males

5391

M45-49

5391

20M→21M

20.0 - 21.0 mi

Top 22%
×8stories
+106ft-24ft

Overall

5878

Males

5105

M45-49

5105

21M→35K

21.0 - 21.8 mi

Top 20%
×7stories
+17ft-86ft

Overall

5293

Males

4721

M45-49

4721

35K→23M

21.8 - 23.0 mi

Top 24%
×5stories
+23ft-63ft

Overall

6512

Males

5508

M45-49

5508

23M→24M

23.0 - 24.0 mi

Top 27%
×6stories
+12ft-82ft

Overall

7122

Males

5772

M45-49

5772

24M→40K

24.0 - 24.9 mi

Top 22%
×1story
+6ft-20ft

Overall

5961

Males

4985

M45-49

4985

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1story
+13ft-16ft

Overall

6263

Males

5099

M45-49

5099

25.2M→Finish

25.2 - 26.2 mi

Top 13%
×2stories
+22ft-21ft

Overall

3560

Males

3185

M45-49

3185

Passing Analysis

Category:
Athletes Passed
1147
Passed By
1117
Net Change
+30
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5101
5K → 10K225179+46#5101#5055
10K → 15K15372+81#5055#4974
15K → 20K98120-22#4974#4996
20K → Half2225-3#4996#4999
Half → 25K106103+3#4999#4996
25K → 30K119176-57#4996#5053
30K → 20M47148-101#5053#5154
20M → 21M5661-5#5154#5159
21M → 35K4829+19#5159#5140
35K → 23M4380-37#5140#5177
23M → 24M4670-24#5177#5201
24M → 40K5135+16#5201#5185
40K → 25.2M2911+18#5185#5167
25.2M → Finish1048+96#5167#5071
TOTALS11471117+30
📊

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