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BOSTON MARATHON 2023

Todd Portnoff

Bib: 12517•M

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 25%
Gender (Male)
#0 / 15176
Top 38%
Masters (Masters Men)
#0 / 9891
Top 24%
Division (M50-54)
#0 / 2052
Top 19%
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
7:18/mi
22:42
↑ 97↓ 3451.5%
10K· 6.21 mi
7:11/mi
45:01
↑ 79↓ 1380.4%
15K· 9.32 mi
7:10/mi
1:07:16
↑ 67↓ 78
20K· 12.43 mi
7:14/mi
1:29:45
↑ 106↓ 860.1%
Half· 13.11 mi
7:07/mi
1:34:36
↑ 19↓ 370.5%
25K· 15.53 mi
7:13/mi
1:52:05
↑ 66↓ 880.2%
30K· 18.64 mi
7:16/mi
2:14:40
↑ 181↓ 1480.2%
20M
7:14/mi
2:24:30
↑ 64↓ 500.2%
21M
7:29/mi
2:31:59
↑ 106↓ 241.6%
35K· 21.75 mi
7:01/mi
2:37:14
↑ 17↓ 861.7%
23M
7:31/mi
2:46:39
↑ 23↓ 630.6%
24M
7:22/mi
2:54:01
↓ 821.3%
40K· 24.85 mi
7:40/mi
3:00:34
↓ 200.3%
25.2M
8:04/mi
3:03:21
↑ 13↓ 160.2%
Finish· 26.22 mi
7:13/mi
3:10:42
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:34:36
Pace7:13 /mi
2nd Half
Distance13.11 mi
Time1:36:06
Pace7:20 /mi
📊Positive Split: 1.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:1222:427:1822:42
7:18
-
10K
6.21 mi11:12:3145:017:1522:19
7:11
-0:07
15K
9.32 mi11:34:461:07:167:1322:15
7:10
-0:01
20K
12.43 mi11:57:151:29:457:1322:29
7:14
+0:04
Half
13.11 mi12:02:061:34:367:134:51
7:07
-0:07
25K
15.53 mi12:19:351:52:057:1317:29
7:13
+0:06
30K
18.64 mi12:42:102:14:407:1322:35
7:16
+0:03
20M
20.00 mi12:52:002:24:307:139:50
7:14
-0:02
21M
21.00 mi12:59:292:31:597:147:29
7:29
+0:15
35K
21.75 mi13:04:442:37:147:145:15
7:01
-0:28
23M
23.00 mi13:14:092:46:397:159:25
7:31
+0:30
24M
24.00 mi13:21:312:54:017:157:22
7:22
-0:09
40K
24.85 mi13:28:043:00:347:166:33
7:40
+0:18
25.2M
25.20 mi13:30:513:03:217:172:47
8:04
+0:24
Finish
26.22 mi13:38:123:10:427:177:21
7:13
-0:51

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

7:01 /mi

Average Pace

7:17 /mi

Slowest Pace

8:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:07:55

99% of race

Time at Steady Pace

2:47

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:16 /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 mi10:50:1222:427:1822:42
7:18
#8130
10K
6.21 mi11:12:3145:017:1522:19
7:11
#8058
15K
9.32 mi11:34:461:07:167:1322:15
7:10
#7870
20K
12.43 mi11:57:151:29:457:1322:29
7:14
#7705
Half
13.11 mi12:02:061:34:367:134:51
7:07
#7662
25K
15.53 mi12:19:351:52:057:1317:29
7:13
#7472
30K
18.64 mi12:42:102:14:407:1322:35
7:16
#7116
20M
20.00 mi12:52:002:24:307:139:50
7:14
#6972
21M
21.00 mi12:59:292:31:597:147:29
7:29
#6804
35K
21.75 mi13:04:442:37:147:145:15
7:01
#6724
23M
23.00 mi13:14:092:46:397:159:25
7:31
#6673
24M
24.00 mi13:21:312:54:017:157:22
7:22
#6631
40K
24.85 mi13:28:043:00:347:166:33
7:40
#6620
25.2M
25.20 mi13:30:513:03:217:172:47
8:04
#6605
Finish
26.22 mi13:38:123:10:427:177:21
7:13
#6571
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi8130705970597523(Top 28%)6609(Top 44%)6609(Top 322%)
10K6.21 mi3.10 mi8058+726994+656994+657964(Top 30%)6911(Top 46%)6911(Top 337%)
15K9.32 mi3.11 mi7870+1886869+1256869+1257523(Top 28%)6609(Top 44%)6609(Top 322%)
20K12.43 mi3.11 mi7705+1656747+1226747+1227328(Top 28%)6444(Top 42%)6444(Top 314%)
Half13.11 mi0.68 mi7662+436713+346713+347175(Top 27%)6344(Top 42%)6344(Top 309%)
25K15.53 mi2.42 mi7472+1906577+1366577+1366725(Top 25%)5950(Top 39%)5950(Top 290%)
30K18.64 mi3.11 mi7116+3566299+2786299+2785872(Top 22%)5281(Top 35%)5281(Top 257%)
20M20.00 mi1.36 mi6972+1446187+1126187+1125310(Top 20%)4785(Top 32%)4785(Top 233%)
21M21.00 mi1.00 mi6804+1686048+1396048+1394514(Top 17%)4116(Top 27%)4116(Top 201%)
35K21.75 mi0.75 mi6724+805977+715977+715454(Top 20%)4850(Top 32%)4850(Top 236%)
23M23.00 mi1.25 mi6673+515922+555922+556528(Top 25%)5524(Top 36%)5524(Top 269%)
24M24.00 mi1.00 mi6631+425878+445878+446813(Top 26%)5602(Top 37%)5602(Top 273%)
40K24.85 mi0.85 mi6620+115848+305848+307665(Top 29%)6029(Top 40%)6029(Top 294%)
25.2M25.20 mi0.35 mi6605+155831+175831+176861(Top 26%)5493(Top 36%)5493(Top 268%)
Finish26.22 mi1.02 mi6571+345797+345797+346496(Top 24%)5247(Top 35%)5247(Top 256%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 28%
×21story building
+97ft-345ft

Overall

7523

Males

6609

M50-54

6609

5K→10K

3.1 - 6.2 mi

Top 30%
×5story building
+79ft-138ft

Overall

7964

Males

6911

M50-54

6911

10K→15K

6.2 - 9.3 mi

Top 28%
×3story building
+67ft-78ft

Overall

7523

Males

6609

M50-54

6609

15K→20K

9.3 - 12.4 mi

Top 28%
×5story building
+106ft-86ft

Overall

7328

Males

6444

M50-54

6444

20K→Half

12.4 - 13.1 mi

Top 27%
×2story building
+19ft-37ft

Overall

7175

Males

6344

M50-54

6344

Half→25K

13.1 - 15.5 mi

Top 25%
×4story building
+66ft-88ft

Overall

6725

Males

5950

M50-54

5950

25K→30K

15.5 - 18.6 mi

Top 22%
×9story building
+181ft-148ft

Overall

5872

Males

5281

M50-54

5281

30K→20M

18.6 - 20.0 mi

Top 20%
×5story building
+64ft-50ft

Overall

5310

Males

4785

M50-54

4785

20M→21M

20.0 - 21.0 mi

Top 17%
×8story building
+106ft-24ft

Overall

4514

Males

4116

M50-54

4116

21M→35K

21.0 - 21.8 mi

Top 20%
×7story building
+17ft-86ft

Overall

5454

Males

4850

M50-54

4850

35K→23M

21.8 - 23.0 mi

Top 25%
×5story building
+23ft-63ft

Overall

6528

Males

5524

M50-54

5524

23M→24M

23.0 - 24.0 mi

Top 26%
×6story building
+12ft-82ft

Overall

6813

Males

5602

M50-54

5602

24M→40K

24.0 - 24.9 mi

Top 29%
×1story
+6ft-20ft

Overall

7665

Males

6029

M50-54

6029

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

6861

Males

5493

M50-54

5493

25.2M→Finish

25.2 - 26.2 mi

Top 24%
×2story building
+22ft-21ft

Overall

6496

Males

5247

M50-54

5247

Passing Analysis

Category:
Athletes Passed
2065
Passed By
506
Net Change
+1559
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8130
5K → 10K271199+72#8130#8058
10K → 15K24759+188#8058#7870
15K → 20K20136+165#7870#7705
20K → Half529+43#7705#7662
Half → 25K20414+190#7662#7472
25K → 30K36610+356#7472#7116
30K → 20M1528+144#7116#6972
20M → 21M1702+168#6972#6804
21M → 35K866+80#6804#6724
35K → 23M9039+51#6724#6673
23M → 24M6422+42#6673#6631
24M → 40K5948+11#6631#6620
40K → 25.2M3722+15#6620#6605
25.2M → Finish6632+34#6605#6571
TOTALS2065506+1559
📊

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