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BOSTON MARATHON 2023

Brian Harrifeld

Bib: 15743•M

NE

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M60-64)
#0 / 1110
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:07
Rank: #16919
Start → 5K
26:07 | 8:24/mi
10K· 6.21 mi
53:01
Rank: #18098 (-1179)
5K → 10K
26:54 | 8:39/mi
15K· 9.32 mi
1:20:29
Rank: #18663 (-565)
10K → 15K
27:28 | 8:50/mi
20K· 12.43 mi
1:48:21
Rank: #18893 (-230)
15K → 20K
27:52 | 8:58/mi
Half· 13.11 mi
1:54:21
Rank: #18933 (-40)
20K → Half
6:00 | 8:48/mi
25K· 15.53 mi
2:16:10
Rank: #18921 (+12)
Half → 25K
21:49 | 9:00/mi
30K· 18.64 mi
2:44:51
Rank: #18808 (+113)
25K → 30K
28:41 | 9:14/mi
20M
2:57:29
Rank: #18752 (+56)
30K → 20M
12:38 | 9:18/mi
21M
3:07:30
Rank: #18689 (+63)
20M → 21M
10:01 | 10:01/mi
35K· 21.75 mi
3:14:11
Rank: #18636 (+53)
21M → 35K
6:41 | 8:56/mi
23M
3:26:05
Rank: #18618 (+18)
35K → 23M
11:54 | 9:30/mi
24M
3:35:28
Rank: #18642 (-24)
23M → 24M
9:23 | 9:23/mi
40K· 24.85 mi
3:43:35
Rank: #18633 (+9)
24M → 40K
8:07 | 9:30/mi
25.2M
3:47:15
Rank: #18664 (-31)
40K → 25.2M
3:40 | 10:38/mi
Finish· 26.22 mi
3:57:12
Rank: #18802 (-138)
25.2M → Finish
9:57 | 9:46/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:54:21
Pace8:43 /mi
2nd Half
Distance13.11 mi
Time2:02:51
Pace9:22 /mi
📊Positive Split: 7.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:57:4726:078:2426:07
8:24
-
10K
6.21 mi11:24:4153:018:3226:54
8:39
+0:15
15K
9.32 mi11:52:091:20:298:3827:28
8:50
+0:11
20K
12.43 mi12:20:011:48:218:4327:52
8:58
+0:08
Half
13.11 mi12:26:011:54:218:436:00
8:48
-0:10
25K
15.53 mi12:47:502:16:108:4621:49
9:00
+0:12
30K
18.64 mi13:16:312:44:518:5128:41
9:14
+0:14
20M
20.00 mi13:29:092:57:298:5212:38
9:18
+0:04
21M
21.00 mi13:39:103:07:308:5610:01
10:01
+0:43
35K
21.75 mi13:45:513:14:118:566:41
8:56
-1:05
23M
23.00 mi13:57:453:26:058:5811:54
9:30
+0:34
24M
24.00 mi14:07:083:35:288:599:23
9:23
-0:07
40K
24.85 mi14:15:153:43:359:008:07
9:30
+0:07
25.2M
25.20 mi14:18:553:47:159:013:40
10:38
+1:08
Finish
26.22 mi14:28:523:57:129:039:57
9:46
-0:52

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

8:24 /mi

Average Pace

9:03 /mi

Slowest Pace

10:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:33:10

39% of race

Time at Steady Pace

2:00:24

51% of race

Time at Slower Pace

23:38

10% of race

Average Pace: 9:03 /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 mi10:57:4726:078:2426:07
8:24
#16919
10K
6.21 mi11:24:4153:018:3226:54
8:39
#18098
15K
9.32 mi11:52:091:20:298:3827:28
8:50
#18663
20K
12.43 mi12:20:011:48:218:4327:52
8:58
#18893
Half
13.11 mi12:26:011:54:218:436:00
8:48
#18933
25K
15.53 mi12:47:502:16:108:4621:49
9:00
#18921
30K
18.64 mi13:16:312:44:518:5128:41
9:14
#18808
20M
20.00 mi13:29:092:57:298:5212:38
9:18
#18752
21M
21.00 mi13:39:103:07:308:5610:01
10:01
#18689
35K
21.75 mi13:45:513:14:118:566:41
8:56
#18636
23M
23.00 mi13:57:453:26:058:5811:54
9:30
#18618
24M
24.00 mi14:07:083:35:288:599:23
9:23
#18642
40K
24.85 mi14:15:153:43:359:008:07
9:30
#18633
25.2M
25.20 mi14:18:553:47:159:013:40
10:38
#18664
Finish
26.22 mi14:28:523:57:129:039:57
9:46
#18802
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi16919110301103019726(Top 74%)12185(Top 80%)12185(Top 1098%)
10K6.21 mi3.10 mi18098-117911493-46311493-46319173(Top 72%)11968(Top 79%)11968(Top 1078%)
15K9.32 mi3.11 mi18663-56511723-23011723-23019726(Top 74%)12185(Top 80%)12185(Top 1098%)
20K12.43 mi3.11 mi18893-23011814-9111814-9119550(Top 73%)12119(Top 80%)12119(Top 1092%)
Half13.11 mi0.68 mi18933-4011832-1811832-1819421(Top 73%)12062(Top 79%)12062(Top 1087%)
25K15.53 mi2.42 mi18921+1211825+711825+718934(Top 71%)11821(Top 78%)11821(Top 1065%)
30K18.64 mi3.11 mi18808+11311753+7211753+7218307(Top 69%)11473(Top 76%)11473(Top 1034%)
20M20.00 mi1.36 mi18752+5611723+3011723+3018002(Top 68%)11237(Top 74%)11237(Top 1012%)
21M21.00 mi1.00 mi18689+6311687+3611687+3618087(Top 68%)11258(Top 74%)11258(Top 1014%)
35K21.75 mi0.75 mi18636+5311664+2311664+2317611(Top 66%)10982(Top 72%)10982(Top 989%)
23M23.00 mi1.25 mi18618+1811637+2711637+2718343(Top 69%)11283(Top 74%)11283(Top 1016%)
24M24.00 mi1.00 mi18642-2411633+411633+418769(Top 71%)11438(Top 75%)11438(Top 1030%)
40K24.85 mi0.85 mi18633+911614+1911614+1918295(Top 69%)11177(Top 74%)11177(Top 1007%)
25.2M25.20 mi0.35 mi18664-3111617-311617-319469(Top 73%)11677(Top 77%)11677(Top 1052%)
Finish26.22 mi1.02 mi18802-13811677-6011677-6021016(Top 79%)12423(Top 82%)12423(Top 1119%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 74%
×21stories
+97ft-345ft

Overall

19726

Males

12185

M60-64

12185

5K→10K

3.1 - 6.2 mi

Top 72%
×5stories
+79ft-138ft

Overall

19173

Males

11968

M60-64

11968

10K→15K

6.2 - 9.3 mi

Top 74%
×3stories
+67ft-78ft

Overall

19726

Males

12185

M60-64

12185

15K→20K

9.3 - 12.4 mi

Top 73%
×5stories
+106ft-86ft

Overall

19550

Males

12119

M60-64

12119

20K→Half

12.4 - 13.1 mi

Top 73%
×2stories
+19ft-37ft

Overall

19421

Males

12062

M60-64

12062

Half→25K

13.1 - 15.5 mi

Top 71%
×4stories
+66ft-88ft

Overall

18934

Males

11821

M60-64

11821

25K→30K

15.5 - 18.6 mi

Top 69%
×9stories
+181ft-148ft

Overall

18307

Males

11473

M60-64

11473

30K→20M

18.6 - 20.0 mi

Top 68%
×5stories
+64ft-50ft

Overall

18002

Males

11237

M60-64

11237

20M→21M

20.0 - 21.0 mi

Top 68%
×8stories
+106ft-24ft

Overall

18087

Males

11258

M60-64

11258

21M→35K

21.0 - 21.8 mi

Top 66%
×7stories
+17ft-86ft

Overall

17611

Males

10982

M60-64

10982

35K→23M

21.8 - 23.0 mi

Top 69%
×5stories
+23ft-63ft

Overall

18343

Males

11283

M60-64

11283

23M→24M

23.0 - 24.0 mi

Top 71%
×6stories
+12ft-82ft

Overall

18769

Males

11438

M60-64

11438

24M→40K

24.0 - 24.9 mi

Top 69%
×1story
+6ft-20ft

Overall

18295

Males

11177

M60-64

11177

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1story
+13ft-16ft

Overall

19469

Males

11677

M60-64

11677

25.2M→Finish

25.2 - 26.2 mi

Top 79%
×2stories
+22ft-21ft

Overall

21016

Males

12423

M60-64

12423

Passing Analysis

Category:
Athletes Passed
1071
Passed By
2954
Net Change
-1883
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16919
5K → 10K491228-1179#16919#18098
10K → 15K52617-565#18098#18663
15K → 20K95325-230#18663#18893
20K → Half1656-40#18893#18933
Half → 25K134122+12#18933#18921
25K → 30K21299+113#18921#18808
30K → 20M11357+56#18808#18752
20M → 21M11754+63#18752#18689
21M → 35K7017+53#18689#18636
35K → 23M8668+18#18636#18618
23M → 24M4771-24#18618#18642
24M → 40K5445+9#18642#18633
40K → 25.2M1647-31#18633#18664
25.2M → Finish10148-138#18664#18802
TOTALS10712954-1883
📊

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