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BOSTON MARATHON 2023

Peter Izanec

OH

Bib: 11716 M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 29%
Gender (Male)
#0 / 15176
Top 43%
Masters (Masters Men)
#0 / 9891
Top 31%
Division (M50-54)
#0 / 2052
Top 26%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
7:29/mi
23:15
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:11/mi
45:34
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:10/mi
1:07:49
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:18/mi
1:30:30
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:11/mi
1:35:24
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:25/mi
1:53:22
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
7:33/mi
2:16:49
↑ 181↓ 1480.2%
138 ft elev
20M
7:33/mi
2:27:05
↑ 64↓ 500.2%
148 ft elev
21M
8:00/mi
2:35:05
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:24/mi
2:40:37
↑ 17↓ 861.7%
156 ft elev
23M
7:38/mi
2:50:11
↑ 23↓ 630.6%
116 ft elev
24M
7:32/mi
2:57:43
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:36/mi
3:04:13
↓ 200.3%
20 ft elev
25.2M
8:16/mi
3:07:04
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:55/mi
3:15:08
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:35:24
Pace7:17 /mi
2nd Half
Distance13.11 mi
Time1:39:44
Pace7:36 /mi
📊Positive Split: 4.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:0923:157:2923:15
7:29
-
10K
6.21 mi11:12:2845:347:2022:19
7:11
-0:18
15K
9.32 mi11:34:431:07:497:1722:15
7:10
-0:01
20K
12.43 mi11:57:241:30:307:1722:41
7:18
+0:08
Half
13.11 mi12:02:181:35:247:174:54
7:11
-0:07
25K
15.53 mi12:20:161:53:227:1817:58
7:25
+0:14
30K
18.64 mi12:43:432:16:497:2023:27
7:33
+0:08
20M
20.00 mi12:53:592:27:057:2110:16
7:33
0:00
21M
21.00 mi13:01:592:35:057:238:00
8:00
+0:27
35K
21.75 mi13:07:312:40:377:235:32
7:24
-0:36
23M
23.00 mi13:17:052:50:117:249:34
7:38
+0:14
24M
24.00 mi13:24:372:57:437:247:32
7:32
-0:06
40K
24.85 mi13:31:073:04:137:256:30
7:36
+0:04
25.2M
25.20 mi13:33:583:07:047:252:51
8:16
+0:40
Finish
26.22 mi13:42:023:15:087:278:04
7:55
-0:21

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

7:10 /mi

Average Pace

7:27 /mi

Slowest Pace

8:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:56:13

90% of race

Time at Steady Pace

18:55

10% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:27 /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 mi10:50:0923:157:2923:15
7:29
#9471
10K
6.21 mi11:12:2845:347:2022:19
7:11
#8666
15K
9.32 mi11:34:431:07:497:1722:15
7:10
#8269
20K
12.43 mi11:57:241:30:307:1722:41
7:18
#8122
Half
13.11 mi12:02:181:35:247:174:54
7:11
#8092
25K
15.53 mi12:20:161:53:227:1817:58
7:25
#8053
30K
18.64 mi12:43:432:16:497:2023:27
7:33
#7931
20M
20.00 mi12:53:592:27:057:2110:16
7:33
#7824
21M
21.00 mi13:01:592:35:057:238:00
8:00
#7747
35K
21.75 mi13:07:312:40:377:235:32
7:24
#7741
23M
23.00 mi13:17:052:50:117:249:34
7:38
#7680
24M
24.00 mi13:24:372:57:437:247:32
7:32
#7656
40K
24.85 mi13:31:073:04:137:256:30
7:36
#7625
25.2M
25.20 mi13:33:583:07:047:252:51
8:16
#7636
Finish
26.22 mi13:42:023:15:087:278:04
7:55
#7771
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi9471785078507529(Top 28%)6615(Top 44%)6615(Top 322%)
10K6.21 mi3.10 mi8666+8057376+4747376+4747973(Top 30%)6920(Top 46%)6920(Top 337%)
15K9.32 mi3.11 mi8269+3977129+2477129+2477529(Top 28%)6615(Top 44%)6615(Top 322%)
20K12.43 mi3.11 mi8122+1477020+1097020+1097786(Top 29%)6749(Top 44%)6749(Top 329%)
Half13.11 mi0.68 mi8092+306998+226998+227705(Top 29%)6712(Top 44%)6712(Top 327%)
25K15.53 mi2.42 mi8053+396951+476951+478088(Top 30%)6859(Top 45%)6859(Top 334%)
30K18.64 mi3.11 mi7931+1226832+1196832+1197556(Top 28%)6424(Top 42%)6424(Top 313%)
20M20.00 mi1.36 mi7824+1076750+826750+827175(Top 27%)6092(Top 40%)6092(Top 297%)
21M21.00 mi1.00 mi7747+776682+686682+687335(Top 28%)6080(Top 40%)6080(Top 296%)
35K21.75 mi0.75 mi7741+66669+136669+137737(Top 29%)6333(Top 42%)6333(Top 309%)
23M23.00 mi1.25 mi7680+616613+566613+567349(Top 28%)6029(Top 40%)6029(Top 294%)
24M24.00 mi1.00 mi7656+246576+376576+377907(Top 30%)6255(Top 41%)6255(Top 305%)
40K24.85 mi0.85 mi7625+316536+406536+407320(Top 27%)5819(Top 38%)5819(Top 284%)
25.2M25.20 mi0.35 mi7636-116531+56531+58004(Top 30%)6164(Top 41%)6164(Top 300%)
Finish26.22 mi1.02 mi7771-1356595-646595-6411472(Top 43%)8020(Top 53%)8020(Top 391%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 28%
×21story building
+97ft-345ft

Overall

7529

Males

6615

M50-54

6615

5K→10K

3.1 - 6.2 mi

Top 30%
×5story building
+79ft-138ft

Overall

7973

Males

6920

M50-54

6920

10K→15K

6.2 - 9.3 mi

Top 28%
×3story building
+67ft-78ft

Overall

7529

Males

6615

M50-54

6615

15K→20K

9.3 - 12.4 mi

Top 29%
×5story building
+106ft-86ft

Overall

7786

Males

6749

M50-54

6749

20K→Half

12.4 - 13.1 mi

Top 29%
×2story building
+19ft-37ft

Overall

7705

Males

6712

M50-54

6712

Half→25K

13.1 - 15.5 mi

Top 30%
×4story building
+66ft-88ft

Overall

8088

Males

6859

M50-54

6859

25K→30K

15.5 - 18.6 mi

Top 28%
×9story building
+181ft-148ft

Overall

7556

Males

6424

M50-54

6424

30K→20M

18.6 - 20.0 mi

Top 27%
×5story building
+64ft-50ft

Overall

7175

Males

6092

M50-54

6092

20M→21M

20.0 - 21.0 mi

Top 28%
×8story building
+106ft-24ft

Overall

7335

Males

6080

M50-54

6080

21M→35K

21.0 - 21.8 mi

Top 29%
×7story building
+17ft-86ft

Overall

7737

Males

6333

M50-54

6333

35K→23M

21.8 - 23.0 mi

Top 28%
×5story building
+23ft-63ft

Overall

7349

Males

6029

M50-54

6029

23M→24M

23.0 - 24.0 mi

Top 30%
×6story building
+12ft-82ft

Overall

7907

Males

6255

M50-54

6255

24M→40K

24.0 - 24.9 mi

Top 27%
×1story
+6ft-20ft

Overall

7320

Males

5819

M50-54

5819

40K→25.2M

24.9 - 25.2 mi

Top 30%
×1story
+13ft-16ft

Overall

8004

Males

6164

M50-54

6164

25.2M→Finish

25.2 - 26.2 mi

Top 43%
×2story building
+22ft-21ft

Overall

11472

Males

8020

M50-54

8020

Passing Analysis

Category:
Athletes Passed
2393
Passed By
693
Net Change
+1700
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9471
5K → 10K84540+805#9471#8666
10K → 15K42023+397#8666#8269
15K → 20K19750+147#8269#8122
20K → Half399+30#8122#8092
Half → 25K11475+39#8092#8053
25K → 30K19371+122#8053#7931
30K → 20M13528+107#7931#7824
20M → 21M10326+77#7824#7747
21M → 35K4135+6#7747#7741
35K → 23M10443+61#7741#7680
23M → 24M8056+24#7680#7656
24M → 40K6837+31#7656#7625
40K → 25.2M2536-11#7625#7636
25.2M → Finish29164-135#7636#7771
TOTALS2393693+1700
📊

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