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BOSTON MARATHON 2023

Mark Flaherty

Bib: 30922•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
26:39
Rank: #18079
Start → 5K
26:39 | 8:35/mi
10K· 6.21 mi
52:22
Rank: #17395 (+684)
5K → 10K
25:43 | 8:17/mi
15K· 9.32 mi
1:18:20
Rank: #17217 (+178)
10K → 15K
25:58 | 8:21/mi
20K· 12.43 mi
1:44:31
Rank: #17004 (+213)
15K → 20K
26:11 | 8:26/mi
Half· 13.11 mi
1:50:14
Rank: #17006 (-2)
20K → Half
5:43 | 8:23/mi
25K· 15.53 mi
2:11:04
Rank: #16963 (+43)
Half → 25K
20:50 | 8:36/mi
30K· 18.64 mi
2:38:33
Rank: #16811 (+152)
25K → 30K
27:29 | 8:51/mi
20M
2:50:49
Rank: #16781 (+30)
30K → 20M
12:16 | 9:02/mi
21M
3:00:13
Rank: #16698 (+83)
20M → 21M
9:24 | 9:24/mi
35K· 21.75 mi
3:06:46
Rank: #16692 (+6)
21M → 35K
6:33 | 8:45/mi
23M
3:18:14
Rank: #16685 (+7)
35K → 23M
11:28 | 9:09/mi
24M
3:27:06
Rank: #16680 (+5)
23M → 24M
8:52 | 8:52/mi
40K· 24.85 mi
3:34:51
Rank: #16676 (+4)
24M → 40K
7:45 | 9:04/mi
25.2M
3:38:10
Rank: #16647 (+29)
40K → 25.2M
3:19 | 9:37/mi
Finish· 26.22 mi
3:46:57
Rank: #16607 (+40)
25.2M → Finish
8:47 | 8:37/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:50:14
Pace8:25 /mi
2nd Half
Distance13.11 mi
Time1:56:43
Pace8:54 /mi
📊Positive Split: 5.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:5326:398:3526:39
8:35
-
10K
6.21 mi12:10:3652:228:2625:43
8:17
-0:18
15K
9.32 mi12:36:341:18:208:2425:58
8:21
+0:04
20K
12.43 mi13:02:451:44:318:2526:11
8:26
+0:05
Half
13.11 mi13:08:281:50:148:255:43
8:23
-0:03
25K
15.53 mi13:29:182:11:048:2620:50
8:36
+0:13
30K
18.64 mi13:56:472:38:338:3027:29
8:51
+0:15
20M
20.00 mi14:09:032:50:498:3212:16
9:02
+0:11
21M
21.00 mi14:18:273:00:138:359:24
9:24
+0:22
35K
21.75 mi14:25:003:06:468:356:33
8:45
-0:39
23M
23.00 mi14:36:283:18:148:3711:28
9:09
+0:24
24M
24.00 mi14:45:203:27:068:388:52
8:52
-0:17
40K
24.85 mi14:53:053:34:518:397:45
9:04
+0:12
25.2M
25.20 mi14:56:243:38:108:393:19
9:37
+0:33
Finish
26.22 mi15:05:113:46:578:408:47
8:37
-1:00

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

8:17 /mi

Average Pace

8:40 /mi

Slowest Pace

9:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:22:46

89% of race

Time at Steady Pace

24:11

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:39 /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 mi11:44:5326:398:3526:39
8:35
#18079
10K
6.21 mi12:10:3652:228:2625:43
8:17
#17395
15K
9.32 mi12:36:341:18:208:2425:58
8:21
#17217
20K
12.43 mi13:02:451:44:318:2526:11
8:26
#17004
Half
13.11 mi13:08:281:50:148:255:43
8:23
#17006
25K
15.53 mi13:29:182:11:048:2620:50
8:36
#16963
30K
18.64 mi13:56:472:38:338:3027:29
8:51
#16811
20M
20.00 mi14:09:032:50:498:3212:16
9:02
#16781
21M
21.00 mi14:18:273:00:138:359:24
9:24
#16698
35K
21.75 mi14:25:003:06:468:356:33
8:45
#16692
23M
23.00 mi14:36:283:18:148:3711:28
9:09
#16685
24M
24.00 mi14:45:203:27:068:388:52
8:52
#16680
40K
24.85 mi14:53:053:34:518:397:45
9:04
#16676
25.2M
25.20 mi14:56:243:38:108:393:19
9:37
#16647
Finish
26.22 mi15:05:113:46:578:408:47
8:37
#16607
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi18079114511145116896(Top 63%)11029(Top 73%)11029(Top 209%)
10K6.21 mi3.10 mi17395+68411215+23611215+23616760(Top 63%)11014(Top 73%)11014(Top 208%)
15K9.32 mi3.11 mi17217+17811155+6011155+6016896(Top 63%)11029(Top 73%)11029(Top 209%)
20K12.43 mi3.11 mi17004+21311054+10111054+10116404(Top 62%)10793(Top 71%)10793(Top 204%)
Half13.11 mi0.68 mi17006-211049+511049+516967(Top 64%)11065(Top 73%)11065(Top 209%)
25K15.53 mi2.42 mi16963+4311018+3111018+3116762(Top 63%)10867(Top 72%)10867(Top 206%)
30K18.64 mi3.11 mi16811+15210937+8110937+8116345(Top 61%)10630(Top 70%)10630(Top 201%)
20M20.00 mi1.36 mi16781+3010905+3210905+3216668(Top 63%)10693(Top 70%)10693(Top 202%)
21M21.00 mi1.00 mi16698+8310861+4410861+4415459(Top 58%)10118(Top 67%)10118(Top 191%)
35K21.75 mi0.75 mi16692+610854+710854+716679(Top 63%)10565(Top 70%)10565(Top 200%)
23M23.00 mi1.25 mi16685+710825+2910825+2916832(Top 63%)10610(Top 70%)10610(Top 201%)
24M24.00 mi1.00 mi16680+510810+1510810+1516557(Top 62%)10429(Top 69%)10429(Top 197%)
40K24.85 mi0.85 mi16676+410787+2310787+2316461(Top 62%)10330(Top 68%)10330(Top 195%)
25.2M25.20 mi0.35 mi16647+2910766+2110766+2115703(Top 59%)9991(Top 66%)9991(Top 189%)
Finish26.22 mi1.02 mi16607+4010744+2210744+2216069(Top 60%)10198(Top 67%)10198(Top 193%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 63%
×21stories
+97ft-345ft

Overall

16896

Males

11029

M18-39

11029

5K→10K

3.1 - 6.2 mi

Top 63%
×5stories
+79ft-138ft

Overall

16760

Males

11014

M18-39

11014

10K→15K

6.2 - 9.3 mi

Top 63%
×3stories
+67ft-78ft

Overall

16896

Males

11029

M18-39

11029

15K→20K

9.3 - 12.4 mi

Top 62%
×5stories
+106ft-86ft

Overall

16404

Males

10793

M18-39

10793

20K→Half

12.4 - 13.1 mi

Top 64%
×2stories
+19ft-37ft

Overall

16967

Males

11065

M18-39

11065

Half→25K

13.1 - 15.5 mi

Top 63%
×4stories
+66ft-88ft

Overall

16762

Males

10867

M18-39

10867

25K→30K

15.5 - 18.6 mi

Top 61%
×9stories
+181ft-148ft

Overall

16345

Males

10630

M18-39

10630

30K→20M

18.6 - 20.0 mi

Top 63%
×5stories
+64ft-50ft

Overall

16668

Males

10693

M18-39

10693

20M→21M

20.0 - 21.0 mi

Top 58%
×8stories
+106ft-24ft

Overall

15459

Males

10118

M18-39

10118

21M→35K

21.0 - 21.8 mi

Top 63%
×7stories
+17ft-86ft

Overall

16679

Males

10565

M18-39

10565

35K→23M

21.8 - 23.0 mi

Top 63%
×5stories
+23ft-63ft

Overall

16832

Males

10610

M18-39

10610

23M→24M

23.0 - 24.0 mi

Top 62%
×6stories
+12ft-82ft

Overall

16557

Males

10429

M18-39

10429

24M→40K

24.0 - 24.9 mi

Top 62%
×1story
+6ft-20ft

Overall

16461

Males

10330

M18-39

10330

40K→25.2M

24.9 - 25.2 mi

Top 59%
×1story
+13ft-16ft

Overall

15703

Males

9991

M18-39

9991

25.2M→Finish

25.2 - 26.2 mi

Top 60%
×2stories
+22ft-21ft

Overall

16069

Males

10198

M18-39

10198

Passing Analysis

Category:
Athletes Passed
2385
Passed By
913
Net Change
+1472
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18079
5K → 10K803119+684#18079#17395
10K → 15K291113+178#17395#17217
15K → 20K29380+213#17217#17004
20K → Half2527-2#17004#17006
Half → 25K13390+43#17006#16963
25K → 30K24088+152#16963#16811
30K → 20M9868+30#16811#16781
20M → 21M11936+83#16781#16698
21M → 35K4539+6#16698#16692
35K → 23M9487+7#16692#16685
23M → 24M6762+5#16685#16680
24M → 40K5854+4#16680#16676
40K → 25.2M4415+29#16676#16647
25.2M → Finish7535+40#16647#16607
TOTALS2385913+1472
📊

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