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BOSTON MARATHON 2023

Peter Krogulski

Bib: 12131•M

TX

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M50-54)
#0 / 2052
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:36
Rank: #13390
Start → 5K
7:55/mi
24:36 split
10K· 6.21 mi
49:34
Rank: #14216 (-826)
5K → 10K
8:02/mi
24:58 split
15K· 9.32 mi
1:14:50
Rank: #14550 (-334)
10K → 15K
8:08/mi
25:16 split
20K· 12.43 mi
1:41:19
Rank: #15270 (-720)
15K → 20K
8:31/mi
26:29 split
Half· 13.11 mi
1:46:55
Rank: #15285 (-15)
20K → Half
8:12/mi
5:36 split
25K· 15.53 mi
2:08:06
Rank: #15661 (-376)
Half → 25K
8:44/mi
21:11 split
30K· 18.64 mi
2:36:13
Rank: #16021 (-360)
25K → 30K
9:03/mi
28:07 split
20M
2:48:27
Rank: #16048 (-27)
30K → 20M
9:00/mi
12:14 split
21M
2:57:34
Rank: #15904 (+144)
20M → 21M
9:07/mi
9:07 split
35K· 21.75 mi
3:03:38
Rank: #15768 (+136)
21M → 35K
8:07/mi
6:04 split
23M
3:14:32
Rank: #15665 (+103)
35K → 23M
8:42/mi
10:54 split
24M
3:23:09
Rank: #15634 (+31)
23M → 24M
8:37/mi
8:37 split
40K· 24.85 mi
3:30:32
Rank: #15588 (+46)
24M → 40K
8:38/mi
7:23 split
25.2M
3:33:40
Rank: #15554 (+34)
40K → 25.2M
9:05/mi
3:08 split
Finish· 26.22 mi
3:42:01
Rank: #15453 (+101)
25.2M → Finish
8:12/mi
8:21 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:55
Pace8:09 /mi
2nd Half
Distance13.11 mi
Time1:55:06
Pace8:47 /mi
📊Positive Split: 7.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:2824:367:5524:36
7:55
-
10K
6.21 mi11:17:2649:347:5924:58
8:02
+0:07
15K
9.32 mi11:42:421:14:508:0225:16
8:08
+0:06
20K
12.43 mi12:09:111:41:198:0926:29
8:31
+0:23
Half
13.11 mi12:14:471:46:558:095:36
8:12
-0:19
25K
15.53 mi12:35:582:08:068:1521:11
8:44
+0:32
30K
18.64 mi13:04:052:36:138:2328:07
9:03
+0:19
20M
20.00 mi13:16:192:48:278:2512:14
9:00
-0:03
21M
21.00 mi13:25:262:57:348:279:07
9:07
+0:07
35K
21.75 mi13:31:303:03:388:276:04
8:07
-1:00
23M
23.00 mi13:42:243:14:328:2710:54
8:42
+0:35
24M
24.00 mi13:51:013:23:098:288:37
8:37
-0:05
40K
24.85 mi13:58:243:30:328:287:23
8:38
+0:01
25.2M
25.20 mi14:01:323:33:408:293:08
9:05
+0:27
Finish
26.22 mi14:09:533:42:018:288:21
8:12
-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

7:55 /mi

Average Pace

8:28 /mi

Slowest Pace

9:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:28:14

67% of race

Time at Steady Pace

1:13:47

33% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:28 /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 mi10:52:2824:367:5524:36
7:55
#13390
10K
6.21 mi11:17:2649:347:5924:58
8:02
#14216
15K
9.32 mi11:42:421:14:508:0225:16
8:08
#14550
20K
12.43 mi12:09:111:41:198:0926:29
8:31
#15270
Half
13.11 mi12:14:471:46:558:095:36
8:12
#15285
25K
15.53 mi12:35:582:08:068:1521:11
8:44
#15661
30K
18.64 mi13:04:052:36:138:2328:07
9:03
#16021
20M
20.00 mi13:16:192:48:278:2512:14
9:00
#16048
21M
21.00 mi13:25:262:57:348:279:07
9:07
#15904
35K
21.75 mi13:31:303:03:388:276:04
8:07
#15768
23M
23.00 mi13:42:243:14:328:2710:54
8:42
#15665
24M
24.00 mi13:51:013:23:098:288:37
8:37
#15634
40K
24.85 mi13:58:243:30:328:287:23
8:38
#15588
25.2M
25.20 mi14:01:323:33:408:293:08
9:05
#15554
Finish
26.22 mi14:09:533:42:018:288:21
8:12
#15453
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi133909710971015370(Top 58%)10461(Top 69%)10461(Top 510%)
10K6.21 mi3.10 mi14216-82610020-31010020-31015055(Top 57%)10329(Top 68%)10329(Top 503%)
15K9.32 mi3.11 mi14550-33410152-13210152-13215370(Top 58%)10461(Top 69%)10461(Top 510%)
20K12.43 mi3.11 mi15270-72010400-24810400-24816996(Top 64%)11051(Top 73%)11051(Top 539%)
Half13.11 mi0.68 mi15285-15104001040015813(Top 59%)10601(Top 70%)10601(Top 517%)
25K15.53 mi2.42 mi15661-37610516-11610516-11617567(Top 66%)11222(Top 74%)11222(Top 547%)
30K18.64 mi3.11 mi16021-36010611-9510611-9517424(Top 65%)11088(Top 73%)11088(Top 540%)
20M20.00 mi1.36 mi16048-2710604+710604+716535(Top 62%)10624(Top 70%)10624(Top 518%)
21M21.00 mi1.00 mi15904+14410526+7810526+7814052(Top 53%)9524(Top 63%)9524(Top 464%)
35K21.75 mi0.75 mi15768+13610453+7310453+7312840(Top 48%)8927(Top 59%)8927(Top 435%)
23M23.00 mi1.25 mi15665+10310380+7310380+7314402(Top 54%)9534(Top 63%)9534(Top 465%)
24M24.00 mi1.00 mi15634+3110354+2610354+2615140(Top 57%)9812(Top 65%)9812(Top 478%)
40K24.85 mi0.85 mi15588+4610331+2310331+2314147(Top 53%)9305(Top 61%)9305(Top 453%)
25.2M25.20 mi0.35 mi15554+3410310+2110310+2112982(Top 49%)8762(Top 58%)8762(Top 427%)
Finish26.22 mi1.02 mi15453+10110255+5510255+5513379(Top 50%)8964(Top 59%)8964(Top 437%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 58%
×21story building
+97ft-345ft

Overall

15370

Males

10461

M50-54

10461

5K→10K

3.1 - 6.2 mi

Top 57%
×5story building
+79ft-138ft

Overall

15055

Males

10329

M50-54

10329

10K→15K

6.2 - 9.3 mi

Top 58%
×3story building
+67ft-78ft

Overall

15370

Males

10461

M50-54

10461

15K→20K

9.3 - 12.4 mi

Top 64%
×5story building
+106ft-86ft

Overall

16996

Males

11051

M50-54

11051

20K→Half

12.4 - 13.1 mi

Top 59%
×2story building
+19ft-37ft

Overall

15813

Males

10601

M50-54

10601

Half→25K

13.1 - 15.5 mi

Top 66%
×4story building
+66ft-88ft

Overall

17567

Males

11222

M50-54

11222

25K→30K

15.5 - 18.6 mi

Top 65%
×9story building
+181ft-148ft

Overall

17424

Males

11088

M50-54

11088

30K→20M

18.6 - 20.0 mi

Top 62%
×5story building
+64ft-50ft

Overall

16535

Males

10624

M50-54

10624

20M→21M

20.0 - 21.0 mi

Top 53%
×8story building
+106ft-24ft

Overall

14052

Males

9524

M50-54

9524

21M→35K

21.0 - 21.8 mi

Top 48%
×7story building
+17ft-86ft

Overall

12840

Males

8927

M50-54

8927

35K→23M

21.8 - 23.0 mi

Top 54%
×5story building
+23ft-63ft

Overall

14402

Males

9534

M50-54

9534

23M→24M

23.0 - 24.0 mi

Top 57%
×6story building
+12ft-82ft

Overall

15140

Males

9812

M50-54

9812

24M→40K

24.0 - 24.9 mi

Top 53%
×1story
+6ft-20ft

Overall

14147

Males

9305

M50-54

9305

40K→25.2M

24.9 - 25.2 mi

Top 49%
×1story
+13ft-16ft

Overall

12982

Males

8762

M50-54

8762

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2story building
+22ft-21ft

Overall

13379

Males

8964

M50-54

8964

Passing Analysis

Category:
Athletes Passed
1206
Passed By
3269
Net Change
-2063
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13390
5K → 10K62888-826#13390#14216
10K → 15K92426-334#14216#14550
15K → 20K43763-720#14550#15270
20K → Half3045-15#15270#15285
Half → 25K50426-376#15285#15661
25K → 30K83443-360#15661#16021
30K → 20M79106-27#16021#16048
20M → 21M16420+144#16048#15904
21M → 35K1404+136#15904#15768
35K → 23M12926+103#15768#15665
23M → 24M7948+31#15665#15634
24M → 40K8438+46#15634#15588
40K → 25.2M4511+34#15588#15554
25.2M → Finish12625+101#15554#15453
TOTALS12063269-2063
📊

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