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BOSTON MARATHON 2023

Cormac Greene

Bib: 29130•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M40-44)
#0 / 2241
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
9:42/mi
30:07
↑ 97↓ 3451.5%
10K· 6.21 mi
8:40/mi
57:02
↑ 79↓ 1380.4%
15K· 9.32 mi
8:30/mi
1:23:25
↑ 67↓ 78
20K· 12.43 mi
8:39/mi
1:50:18
↑ 106↓ 860.1%
Half· 13.11 mi
8:24/mi
1:56:02
↑ 19↓ 370.5%
25K· 15.53 mi
8:34/mi
2:16:48
↑ 66↓ 880.2%
30K· 18.64 mi
8:45/mi
2:44:00
↑ 181↓ 1480.2%
20M
8:55/mi
2:56:07
↑ 64↓ 500.2%
21M
9:16/mi
3:05:23
↑ 106↓ 241.6%
35K· 21.75 mi
8:31/mi
3:11:45
↑ 17↓ 861.7%
23M
8:35/mi
3:22:30
↑ 23↓ 630.6%
24M
8:36/mi
3:31:06
↓ 821.3%
40K· 24.85 mi
8:14/mi
3:38:08
↓ 200.3%
25.2M
9:08/mi
3:41:17
↑ 13↓ 160.2%
Finish· 26.22 mi
7:58/mi
3:49:24
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:56:02
Pace8:51 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:53:22
Pace8:39 /mi
📊Negative Split: 2.3% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:0230:079:4230:07
9:42
-
10K
6.21 mi12:18:5757:029:1126:55
8:40
-1:02
15K
9.32 mi12:45:201:23:258:5726:23
8:30
-0:10
20K
12.43 mi13:12:131:50:188:5326:53
8:39
+0:09
Half
13.11 mi13:17:571:56:028:515:44
8:24
-0:15
25K
15.53 mi13:38:432:16:488:4820:46
8:34
+0:10
30K
18.64 mi14:05:552:44:008:4827:12
8:45
+0:11
20M
20.00 mi14:18:022:56:078:4812:07
8:55
+0:10
21M
21.00 mi14:27:183:05:238:509:16
9:16
+0:21
35K
21.75 mi14:33:403:11:458:496:22
8:31
-0:45
23M
23.00 mi14:44:253:22:308:4810:45
8:35
+0:04
24M
24.00 mi14:53:013:31:068:488:36
8:36
+0:01
40K
24.85 mi15:00:033:38:088:477:02
8:14
-0:22
25.2M
25.20 mi15:03:123:41:178:473:09
9:08
+0:54
Finish
26.22 mi15:11:193:49:248:458:07
7:58
-1:10

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

7:58 /mi

Average Pace

8:45 /mi

Slowest Pace

9:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

15:09

7% of race

Time at Steady Pace

2:39:36

70% of race

Time at Slower Pace

54:39

24% of race

Average Pace: 8:45 /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 mi11:52:0230:079:4230:07
9:42
#22633
10K
6.21 mi12:18:5757:029:1126:55
8:40
#21336
15K
9.32 mi12:45:201:23:258:5726:23
8:30
#20337
20K
12.43 mi13:12:131:50:188:5326:53
8:39
#19729
Half
13.11 mi13:17:571:56:028:515:44
8:24
#19591
25K
15.53 mi13:38:432:16:488:4820:46
8:34
#19116
30K
18.64 mi14:05:552:44:008:4827:12
8:45
#18565
20M
20.00 mi14:18:022:56:078:4812:07
8:55
#18360
21M
21.00 mi14:27:183:05:238:509:16
9:16
#18134
35K
21.75 mi14:33:403:11:458:496:22
8:31
#18043
23M
23.00 mi14:44:253:22:308:4810:45
8:35
#17798
24M
24.00 mi14:53:013:31:068:488:36
8:36
#17683
40K
24.85 mi15:00:033:38:088:477:02
8:14
#17457
25.2M
25.20 mi15:03:123:41:178:473:09
9:08
#17393
Finish
26.22 mi15:11:193:49:248:458:07
7:58
#17210
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi22633134081340817740(Top 67%)11358(Top 75%)11358(Top 507%)
10K6.21 mi3.10 mi21336+129712819+58912819+58919203(Top 72%)11977(Top 79%)11977(Top 534%)
15K9.32 mi3.11 mi20337+99912390+42912390+42917740(Top 67%)11358(Top 75%)11358(Top 507%)
20K12.43 mi3.11 mi19729+60812150+24012150+24017813(Top 67%)11387(Top 75%)11387(Top 508%)
Half13.11 mi0.68 mi19591+13812093+5712093+5717122(Top 64%)11131(Top 73%)11131(Top 497%)
25K15.53 mi2.42 mi19116+47511908+18511908+18516581(Top 62%)10797(Top 71%)10797(Top 482%)
30K18.64 mi3.11 mi18565+55111642+26611642+26615801(Top 59%)10397(Top 69%)10397(Top 464%)
20M20.00 mi1.36 mi18360+20511547+9511547+9516082(Top 60%)10448(Top 69%)10448(Top 466%)
21M21.00 mi1.00 mi18134+22611432+11511432+11514796(Top 56%)9855(Top 65%)9855(Top 440%)
35K21.75 mi0.75 mi18043+9111399+3311399+3315376(Top 58%)10029(Top 66%)10029(Top 448%)
23M23.00 mi1.25 mi17798+24511277+12211277+12213724(Top 52%)9252(Top 61%)9252(Top 413%)
24M24.00 mi1.00 mi17683+11511221+5611221+5615051(Top 57%)9782(Top 64%)9782(Top 437%)
40K24.85 mi0.85 mi17457+22611119+10211119+10211541(Top 43%)8107(Top 53%)8107(Top 362%)
25.2M25.20 mi0.35 mi17393+6411083+3611083+3613260(Top 50%)8901(Top 59%)8901(Top 397%)
Finish26.22 mi1.02 mi17210+18310998+8510998+8511864(Top 45%)8226(Top 54%)8226(Top 367%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 67%
×21story building
+97ft-345ft

Overall

17740

Males

11358

M40-44

11358

5K→10K

3.1 - 6.2 mi

Top 72%
×5story building
+79ft-138ft

Overall

19203

Males

11977

M40-44

11977

10K→15K

6.2 - 9.3 mi

Top 67%
×3story building
+67ft-78ft

Overall

17740

Males

11358

M40-44

11358

15K→20K

9.3 - 12.4 mi

Top 67%
×5story building
+106ft-86ft

Overall

17813

Males

11387

M40-44

11387

20K→Half

12.4 - 13.1 mi

Top 64%
×2story building
+19ft-37ft

Overall

17122

Males

11131

M40-44

11131

Half→25K

13.1 - 15.5 mi

Top 62%
×4story building
+66ft-88ft

Overall

16581

Males

10797

M40-44

10797

25K→30K

15.5 - 18.6 mi

Top 59%
×9story building
+181ft-148ft

Overall

15801

Males

10397

M40-44

10397

30K→20M

18.6 - 20.0 mi

Top 60%
×5story building
+64ft-50ft

Overall

16082

Males

10448

M40-44

10448

20M→21M

20.0 - 21.0 mi

Top 56%
×8story building
+106ft-24ft

Overall

14796

Males

9855

M40-44

9855

21M→35K

21.0 - 21.8 mi

Top 58%
×7story building
+17ft-86ft

Overall

15376

Males

10029

M40-44

10029

35K→23M

21.8 - 23.0 mi

Top 52%
×5story building
+23ft-63ft

Overall

13724

Males

9252

M40-44

9252

23M→24M

23.0 - 24.0 mi

Top 57%
×6story building
+12ft-82ft

Overall

15051

Males

9782

M40-44

9782

24M→40K

24.0 - 24.9 mi

Top 43%
×1story
+6ft-20ft

Overall

11541

Males

8107

M40-44

8107

40K→25.2M

24.9 - 25.2 mi

Top 50%
×1story
+13ft-16ft

Overall

13260

Males

8901

M40-44

8901

25.2M→Finish

25.2 - 26.2 mi

Top 45%
×2story building
+22ft-21ft

Overall

11864

Males

8226

M40-44

8226

Passing Analysis

Category:
Athletes Passed
5530
Passed By
107
Net Change
+5423
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22633
5K → 10K13058+1297#22633#21336
10K → 15K10012+999#21336#20337
15K → 20K6168+608#20337#19729
20K → Half1380+138#19729#19591
Half → 25K4794+475#19591#19116
25K → 30K56110+551#19116#18565
30K → 20M22015+205#18565#18360
20M → 21M24014+226#18360#18134
21M → 35K10413+91#18134#18043
35K → 23M2505+245#18043#17798
23M → 24M12611+115#17798#17683
24M → 40K2304+226#17683#17457
40K → 25.2M717+64#17457#17393
25.2M → Finish1896+183#17393#17210
TOTALS5530107+5423
📊

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