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BOSTON MARATHON 2023

Dan Greco

Bib: 29974•M

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
30:25
Rank: #22880
Start → 5K
30:25 | 9:47/mi
10K· 6.21 mi
59:46
Rank: #22653 (+227)
5K → 10K
29:21 | 9:27/mi
15K· 9.32 mi
1:28:09
Rank: #22171 (+482)
10K → 15K
28:23 | 9:08/mi
20K· 12.43 mi
1:56:38
Rank: #21758 (+413)
15K → 20K
28:29 | 9:10/mi
Half· 13.11 mi
2:02:55
Rank: #21740 (+18)
20K → Half
6:17 | 9:13/mi
25K· 15.53 mi
2:25:25
Rank: #21489 (+251)
Half → 25K
22:30 | 9:17/mi
30K· 18.64 mi
2:54:58
Rank: #21130 (+359)
25K → 30K
29:33 | 9:31/mi
20M
3:07:58
Rank: #20945 (+185)
30K → 20M
13:00 | 9:34/mi
21M
3:17:59
Rank: #20784 (+161)
20M → 21M
10:01 | 10:01/mi
35K· 21.75 mi
3:25:22
Rank: #20777 (+7)
21M → 35K
7:23 | 9:52/mi
23M
3:37:57
Rank: #20727 (+50)
35K → 23M
12:35 | 10:03/mi
24M
3:47:49
Rank: #20713 (+14)
23M → 24M
9:52 | 9:52/mi
40K· 24.85 mi
3:56:13
Rank: #20647 (+66)
24M → 40K
8:24 | 9:49/mi
25.2M
3:59:48
Rank: #20616 (+31)
40K → 25.2M
3:35 | 10:23/mi
Finish· 26.22 mi
4:09:09
Rank: #20557 (+59)
25.2M → Finish
9:21 | 9:11/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:02:55
Pace9:23 /mi
2nd Half
Distance13.11 mi
Time2:06:14
Pace9:38 /mi
📊Positive Split: 2.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:4530:259:4730:25
9:47
-
10K
6.21 mi12:23:0659:469:3729:21
9:27
-0:20
15K
9.32 mi12:51:291:28:099:2728:23
9:08
-0:19
20K
12.43 mi13:19:581:56:389:2328:29
9:10
+0:02
Half
13.11 mi13:26:152:02:559:236:17
9:13
+0:03
25K
15.53 mi13:48:452:25:259:2222:30
9:17
+0:04
30K
18.64 mi14:18:182:54:589:2329:33
9:31
+0:14
20M
20.00 mi14:31:183:07:589:2413:00
9:34
+0:03
21M
21.00 mi14:41:193:17:599:2610:01
10:01
+0:27
35K
21.75 mi14:48:423:25:229:277:23
9:52
-0:09
23M
23.00 mi15:01:173:37:579:2912:35
10:03
+0:11
24M
24.00 mi15:11:093:47:499:309:52
9:52
-0:11
40K
24.85 mi15:19:333:56:139:308:24
9:49
-0:03
25.2M
25.20 mi15:23:083:59:489:313:35
10:23
+0:34
Finish
26.22 mi15:32:294:09:099:319:21
9:11
-1:12

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

9:08 /mi

Average Pace

9:31 /mi

Slowest Pace

10:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:52:59

94% of race

Time at Steady Pace

16:10

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:30 /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 mi11:53:4530:259:4730:25
9:47
#22880
10K
6.21 mi12:23:0659:469:3729:21
9:27
#22653
15K
9.32 mi12:51:291:28:099:2728:23
9:08
#22171
20K
12.43 mi13:19:581:56:389:2328:29
9:10
#21758
Half
13.11 mi13:26:152:02:559:236:17
9:13
#21740
25K
15.53 mi13:48:452:25:259:2222:30
9:17
#21489
30K
18.64 mi14:18:182:54:589:2329:33
9:31
#21130
20M
20.00 mi14:31:183:07:589:2413:00
9:34
#20945
21M
21.00 mi14:41:193:17:599:2610:01
10:01
#20784
35K
21.75 mi14:48:423:25:229:277:23
9:52
#20777
23M
23.00 mi15:01:173:37:579:2912:35
10:03
#20727
24M
24.00 mi15:11:093:47:499:309:52
9:52
#20713
40K
24.85 mi15:19:333:56:139:308:24
9:49
#20647
25.2M
25.20 mi15:23:083:59:489:313:35
10:23
#20616
Finish
26.22 mi15:32:294:09:099:319:21
9:11
#20557
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi22880135381353821084(Top 79%)12781(Top 84%)12781(Top 242%)
10K6.21 mi3.10 mi22653+22713455+8313455+8322345(Top 84%)13318(Top 88%)13318(Top 252%)
15K9.32 mi3.11 mi22171+48213227+22813227+22821084(Top 79%)12781(Top 84%)12781(Top 242%)
20K12.43 mi3.11 mi21758+41313049+17813049+17820433(Top 77%)12490(Top 82%)12490(Top 236%)
Half13.11 mi0.68 mi21740+1813041+813041+821161(Top 79%)12793(Top 84%)12793(Top 242%)
25K15.53 mi2.42 mi21489+25112928+11312928+11320131(Top 76%)12339(Top 81%)12339(Top 233%)
30K18.64 mi3.11 mi21130+35912758+17012758+17019475(Top 73%)12000(Top 79%)12000(Top 227%)
20M20.00 mi1.36 mi20945+18512660+9812660+9819106(Top 72%)11737(Top 77%)11737(Top 222%)
21M21.00 mi1.00 mi20784+16112584+7612584+7618094(Top 68%)11265(Top 74%)11265(Top 213%)
35K21.75 mi0.75 mi20777+712563+2112563+2120905(Top 79%)12445(Top 82%)12445(Top 235%)
23M23.00 mi1.25 mi20727+5012525+3812525+3820127(Top 76%)12076(Top 80%)12076(Top 228%)
24M24.00 mi1.00 mi20713+1412508+1712508+1720420(Top 77%)12185(Top 80%)12185(Top 231%)
40K24.85 mi0.85 mi20647+6612469+3912469+3919455(Top 73%)11692(Top 77%)11692(Top 221%)
25.2M25.20 mi0.35 mi20616+3112451+1812451+1818735(Top 70%)11363(Top 75%)11363(Top 215%)
Finish26.22 mi1.02 mi20557+5912421+3012421+3018797(Top 71%)11449(Top 75%)11449(Top 217%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 79%
×21stories
+97ft-345ft

Overall

21084

Males

12781

M18-39

12781

5K→10K

3.1 - 6.2 mi

Top 84%
×5stories
+79ft-138ft

Overall

22345

Males

13318

M18-39

13318

10K→15K

6.2 - 9.3 mi

Top 79%
×3stories
+67ft-78ft

Overall

21084

Males

12781

M18-39

12781

15K→20K

9.3 - 12.4 mi

Top 77%
×5stories
+106ft-86ft

Overall

20433

Males

12490

M18-39

12490

20K→Half

12.4 - 13.1 mi

Top 79%
×2stories
+19ft-37ft

Overall

21161

Males

12793

M18-39

12793

Half→25K

13.1 - 15.5 mi

Top 76%
×4stories
+66ft-88ft

Overall

20131

Males

12339

M18-39

12339

25K→30K

15.5 - 18.6 mi

Top 73%
×9stories
+181ft-148ft

Overall

19475

Males

12000

M18-39

12000

30K→20M

18.6 - 20.0 mi

Top 72%
×5stories
+64ft-50ft

Overall

19106

Males

11737

M18-39

11737

20M→21M

20.0 - 21.0 mi

Top 68%
×8stories
+106ft-24ft

Overall

18094

Males

11265

M18-39

11265

21M→35K

21.0 - 21.8 mi

Top 79%
×7stories
+17ft-86ft

Overall

20905

Males

12445

M18-39

12445

35K→23M

21.8 - 23.0 mi

Top 76%
×5stories
+23ft-63ft

Overall

20127

Males

12076

M18-39

12076

23M→24M

23.0 - 24.0 mi

Top 77%
×6stories
+12ft-82ft

Overall

20420

Males

12185

M18-39

12185

24M→40K

24.0 - 24.9 mi

Top 73%
×1story
+6ft-20ft

Overall

19455

Males

11692

M18-39

11692

40K→25.2M

24.9 - 25.2 mi

Top 70%
×1story
+13ft-16ft

Overall

18735

Males

11363

M18-39

11363

25.2M→Finish

25.2 - 26.2 mi

Top 71%
×2stories
+22ft-21ft

Overall

18797

Males

11449

M18-39

11449

Passing Analysis

Category:
Athletes Passed
2690
Passed By
367
Net Change
+2323
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22880
5K → 10K376149+227#22880#22653
10K → 15K49513+482#22653#22171
15K → 20K42512+413#22171#21758
20K → Half3315+18#21758#21740
Half → 25K2587+251#21740#21489
25K → 30K37314+359#21489#21130
30K → 20M1905+185#21130#20945
20M → 21M1643+161#20945#20784
21M → 35K4639+7#20784#20777
35K → 23M9040+50#20777#20727
23M → 24M5137+14#20727#20713
24M → 40K7610+66#20713#20647
40K → 25.2M365+31#20647#20616
25.2M → Finish7718+59#20616#20557
TOTALS2690367+2323
📊

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