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BOSTON MARATHON 2023

Bryan Koepp

Bib: 13818•M

GA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 40%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 45%
Division (M45-49)
#0 / 2252
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
7:38/mi
23:42
↑ 97↓ 3451.5%
10K· 6.21 mi
7:35/mi
47:16
↑ 79↓ 1380.4%
15K· 9.32 mi
7:41/mi
1:11:08
↑ 67↓ 78
20K· 12.43 mi
7:55/mi
1:35:44
↑ 106↓ 860.1%
Half· 13.11 mi
7:48/mi
1:41:03
↑ 19↓ 370.5%
25K· 15.53 mi
7:57/mi
2:00:20
↑ 66↓ 880.2%
30K· 18.64 mi
7:59/mi
2:25:07
↑ 181↓ 1480.2%
20M
7:55/mi
2:35:53
↑ 64↓ 500.2%
21M
8:22/mi
2:44:15
↑ 106↓ 241.6%
35K· 21.75 mi
7:40/mi
2:49:59
↑ 17↓ 861.7%
23M
8:02/mi
3:00:02
↑ 23↓ 630.6%
24M
7:53/mi
3:07:55
↓ 821.3%
40K· 24.85 mi
7:55/mi
3:14:41
↓ 200.3%
25.2M
8:27/mi
3:17:36
↑ 13↓ 160.2%
Finish· 26.22 mi
7:34/mi
3:25:19
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:03
Pace7:42 /mi
2nd Half
Distance13.11 mi
Time1:44:16
Pace7:57 /mi
📊Positive Split: 3.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:1823:427:3823:42
7:38
-
10K
6.21 mi11:15:5247:167:3623:34
7:35
-0:03
15K
9.32 mi11:39:441:11:087:3823:52
7:41
+0:06
20K
12.43 mi12:04:201:35:447:4224:36
7:55
+0:14
Half
13.11 mi12:09:391:41:037:425:19
7:48
-0:07
25K
15.53 mi12:28:562:00:207:4519:17
7:57
+0:09
30K
18.64 mi12:53:432:25:077:4724:47
7:59
+0:02
20M
20.00 mi13:04:292:35:537:4810:46
7:55
-0:04
21M
21.00 mi13:12:512:44:157:498:22
8:22
+0:27
35K
21.75 mi13:18:352:49:597:495:44
7:40
-0:42
23M
23.00 mi13:28:383:00:027:5010:03
8:02
+0:22
24M
24.00 mi13:36:313:07:557:507:53
7:53
-0:09
40K
24.85 mi13:43:173:14:417:506:46
7:55
+0:02
25.2M
25.20 mi13:46:123:17:367:502:55
8:27
+0:32
Finish
26.22 mi13:53:553:25:197:507:43
7:34
-0:53

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

7:34 /mi

Average Pace

7:50 /mi

Slowest Pace

8:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:14:02

95% of race

Time at Steady Pace

11:17

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:50 /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 mi10:52:1823:427:3823:42
7:38
#10790
10K
6.21 mi11:15:5247:167:3623:34
7:35
#10966
15K
9.32 mi11:39:441:11:087:3823:52
7:41
#11211
20K
12.43 mi12:04:201:35:447:4224:36
7:55
#11557
Half
13.11 mi12:09:391:41:037:425:19
7:48
#11606
25K
15.53 mi12:28:562:00:207:4519:17
7:57
#11687
30K
18.64 mi12:53:432:25:077:4724:47
7:59
#11480
20M
20.00 mi13:04:292:35:537:4810:46
7:55
#11309
21M
21.00 mi13:12:512:44:157:498:22
8:22
#11174
35K
21.75 mi13:18:352:49:597:495:44
7:40
#11113
23M
23.00 mi13:28:383:00:027:5010:03
8:02
#11012
24M
24.00 mi13:36:313:07:557:507:53
7:53
#10972
40K
24.85 mi13:43:173:14:417:506:46
7:55
#10898
25.2M
25.20 mi13:46:123:17:367:502:55
8:27
#10866
Finish
26.22 mi13:53:553:25:197:507:43
7:34
#10763
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi107908562856211682(Top 44%)8941(Top 59%)8941(Top 397%)
10K6.21 mi3.10 mi10966-1768647-858647-8511181(Top 42%)8745(Top 58%)8745(Top 388%)
15K9.32 mi3.11 mi11211-2458753-1068753-10611682(Top 44%)8941(Top 59%)8941(Top 397%)
20K12.43 mi3.11 mi11557-3468883-1308883-13012755(Top 48%)9323(Top 61%)9323(Top 414%)
Half13.11 mi0.68 mi11606-498901-188901-1812568(Top 47%)9293(Top 61%)9293(Top 413%)
25K15.53 mi2.42 mi11687-818919-188919-1812312(Top 46%)9031(Top 60%)9031(Top 401%)
30K18.64 mi3.11 mi11480+2078783+1368783+13610688(Top 40%)8186(Top 54%)8186(Top 363%)
20M20.00 mi1.36 mi11309+1718690+938690+939717(Top 36%)7592(Top 50%)7592(Top 337%)
21M21.00 mi1.00 mi11174+1358610+808610+809626(Top 36%)7413(Top 49%)7413(Top 329%)
35K21.75 mi0.75 mi11113+618571+398571+399691(Top 36%)7463(Top 49%)7463(Top 331%)
23M23.00 mi1.25 mi11012+1018496+758496+759923(Top 37%)7438(Top 49%)7438(Top 330%)
24M24.00 mi1.00 mi10972+408450+468450+4610391(Top 39%)7600(Top 50%)7600(Top 337%)
40K24.85 mi0.85 mi10898+748379+718379+719424(Top 35%)7051(Top 46%)7051(Top 313%)
25.2M25.20 mi0.35 mi10866+328348+318348+319221(Top 35%)6881(Top 45%)6881(Top 306%)
Finish26.22 mi1.02 mi10763+1038268+808268+809084(Top 34%)6801(Top 45%)6801(Top 302%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 44%
×21story building
+97ft-345ft

Overall

11682

Males

8941

M45-49

8941

5K→10K

3.1 - 6.2 mi

Top 42%
×5story building
+79ft-138ft

Overall

11181

Males

8745

M45-49

8745

10K→15K

6.2 - 9.3 mi

Top 44%
×3story building
+67ft-78ft

Overall

11682

Males

8941

M45-49

8941

15K→20K

9.3 - 12.4 mi

Top 48%
×5story building
+106ft-86ft

Overall

12755

Males

9323

M45-49

9323

20K→Half

12.4 - 13.1 mi

Top 47%
×2story building
+19ft-37ft

Overall

12568

Males

9293

M45-49

9293

Half→25K

13.1 - 15.5 mi

Top 46%
×4story building
+66ft-88ft

Overall

12312

Males

9031

M45-49

9031

25K→30K

15.5 - 18.6 mi

Top 40%
×9story building
+181ft-148ft

Overall

10688

Males

8186

M45-49

8186

30K→20M

18.6 - 20.0 mi

Top 36%
×5story building
+64ft-50ft

Overall

9717

Males

7592

M45-49

7592

20M→21M

20.0 - 21.0 mi

Top 36%
×8story building
+106ft-24ft

Overall

9626

Males

7413

M45-49

7413

21M→35K

21.0 - 21.8 mi

Top 36%
×7story building
+17ft-86ft

Overall

9691

Males

7463

M45-49

7463

35K→23M

21.8 - 23.0 mi

Top 37%
×5story building
+23ft-63ft

Overall

9923

Males

7438

M45-49

7438

23M→24M

23.0 - 24.0 mi

Top 39%
×6story building
+12ft-82ft

Overall

10391

Males

7600

M45-49

7600

24M→40K

24.0 - 24.9 mi

Top 35%
×1story
+6ft-20ft

Overall

9424

Males

7051

M45-49

7051

40K→25.2M

24.9 - 25.2 mi

Top 35%
×1story
+13ft-16ft

Overall

9221

Males

6881

M45-49

6881

25.2M→Finish

25.2 - 26.2 mi

Top 34%
×2story building
+22ft-21ft

Overall

9084

Males

6801

M45-49

6801

Passing Analysis

Category:
Athletes Passed
1743
Passed By
1716
Net Change
+27
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10790
5K → 10K215391-176#10790#10966
10K → 15K102347-245#10966#11211
15K → 20K71417-346#11211#11557
20K → Half1665-49#11557#11606
Half → 25K121202-81#11606#11687
25K → 30K28376+207#11687#11480
30K → 20M18716+171#11480#11309
20M → 21M16025+135#11309#11174
21M → 35K7615+61#11174#11113
35K → 23M14039+101#11113#11012
23M → 24M9050+40#11012#10972
24M → 40K10228+74#10972#10898
40K → 25.2M4917+32#10898#10866
25.2M → Finish13128+103#10866#10763
TOTALS17431716+27
📊

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