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BOSTON MARATHON 2023

Steven Helfand

Bib: 12487•M

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 41%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 45%
Division (M50-54)
#0 / 2052
Top 46%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:02
Rank: #8923
Start → 5K
23:02 | 7:25/mi
10K· 6.21 mi
45:56
Rank: #9129 (-206)
5K → 10K
22:54 | 7:22/mi
15K· 9.32 mi
1:09:17
Rank: #9456 (-327)
10K → 15K
23:21 | 7:31/mi
20K· 12.43 mi
1:32:56
Rank: #9635 (-179)
15K → 20K
23:39 | 7:37/mi
Half· 13.11 mi
1:38:10
Rank: #9745 (-110)
20K → Half
5:14 | 7:40/mi
25K· 15.53 mi
1:56:54
Rank: #9854 (-109)
Half → 25K
18:44 | 7:44/mi
30K· 18.64 mi
2:22:06
Rank: #10152 (-298)
25K → 30K
25:12 | 8:07/mi
20M
2:33:17
Rank: #10266 (-114)
30K → 20M
11:11 | 8:14/mi
21M
2:42:09
Rank: #10403 (-137)
20M → 21M
8:52 | 8:52/mi
35K· 21.75 mi
2:48:06
Rank: #10418 (-15)
21M → 35K
5:57 | 7:57/mi
23M
2:58:48
Rank: #10592 (-174)
35K → 23M
10:42 | 8:33/mi
24M
3:07:01
Rank: #10685 (-93)
23M → 24M
8:13 | 8:13/mi
40K· 24.85 mi
3:14:21
Rank: #10788 (-103)
24M → 40K
7:20 | 8:35/mi
25.2M
3:17:24
Rank: #10791 (-3)
40K → 25.2M
3:03 | 8:51/mi
Finish· 26.22 mi
3:25:43
Rank: #10887 (-96)
25.2M → Finish
8:19 | 8:10/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:10
Pace7:29 /mi
2nd Half
Distance13.11 mi
Time1:47:33
Pace8:12 /mi
📊Positive Split: 9.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:5723:027:2523:02
7:25
-
10K
6.21 mi11:13:5145:567:2422:54
7:22
-0:03
15K
9.32 mi11:37:121:09:177:2623:21
7:31
+0:09
20K
12.43 mi12:00:511:32:567:2923:39
7:37
+0:06
Half
13.11 mi12:06:051:38:107:295:14
7:40
+0:03
25K
15.53 mi12:24:491:56:547:3218:44
7:44
+0:04
30K
18.64 mi12:50:012:22:067:3725:12
8:07
+0:23
20M
20.00 mi13:01:122:33:177:4011:11
8:14
+0:07
21M
21.00 mi13:10:042:42:097:438:52
8:52
+0:38
35K
21.75 mi13:16:012:48:067:445:57
7:57
-0:55
23M
23.00 mi13:26:432:58:487:4610:42
8:33
+0:36
24M
24.00 mi13:34:563:07:017:488:13
8:13
-0:20
40K
24.85 mi13:42:163:14:217:497:20
8:35
+0:22
25.2M
25.20 mi13:45:193:17:247:503:03
8:51
+0:16
Finish
26.22 mi13:53:383:25:437:518:19
8:10
-0:41

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

7:22 /mi

Average Pace

7:51 /mi

Slowest Pace

8:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:56:54

57% of race

Time at Steady Pace

58:52

29% of race

Time at Slower Pace

29:57

15% of race

Average Pace: 7:51 /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 mi10:50:5723:027:2523:02
7:25
#8923
10K
6.21 mi11:13:5145:567:2422:54
7:22
#9129
15K
9.32 mi11:37:121:09:177:2623:21
7:31
#9456
20K
12.43 mi12:00:511:32:567:2923:39
7:37
#9635
Half
13.11 mi12:06:051:38:107:295:14
7:40
#9745
25K
15.53 mi12:24:491:56:547:3218:44
7:44
#9854
30K
18.64 mi12:50:012:22:067:3725:12
8:07
#10152
20M
20.00 mi13:01:122:33:177:4011:11
8:14
#10266
21M
21.00 mi13:10:042:42:097:438:52
8:52
#10403
35K
21.75 mi13:16:012:48:067:445:57
7:57
#10418
23M
23.00 mi13:26:432:58:487:4610:42
8:33
#10592
24M
24.00 mi13:34:563:07:017:488:13
8:13
#10685
40K
24.85 mi13:42:163:14:217:497:20
8:35
#10788
25.2M
25.20 mi13:45:193:17:247:503:03
8:51
#10791
Finish
26.22 mi13:53:383:25:437:518:19
8:10
#10887
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi89237548754810301(Top 39%)8307(Top 55%)8307(Top 405%)
10K6.21 mi3.10 mi9129-2067652-1047652-1049387(Top 35%)7797(Top 51%)7797(Top 380%)
15K9.32 mi3.11 mi9456-3277846-1947846-19410301(Top 39%)8307(Top 55%)8307(Top 405%)
20K12.43 mi3.11 mi9635-1797946-1007946-10010170(Top 38%)8168(Top 54%)8168(Top 398%)
Half13.11 mi0.68 mi9745-1108006-608006-6011555(Top 43%)8868(Top 58%)8868(Top 432%)
25K15.53 mi2.42 mi9854-1098053-478053-4710489(Top 39%)8252(Top 54%)8252(Top 402%)
30K18.64 mi3.11 mi10152-2988172-1198172-11911712(Top 44%)8673(Top 57%)8673(Top 423%)
20M20.00 mi1.36 mi10266-1148200-288200-2811863(Top 45%)8648(Top 57%)8648(Top 421%)
21M21.00 mi1.00 mi10403-1378238-388238-3812611(Top 47%)8849(Top 58%)8849(Top 431%)
35K21.75 mi0.75 mi10418-158223+158223+1511736(Top 44%)8436(Top 56%)8436(Top 411%)
23M23.00 mi1.25 mi10592-1748276-538276-5313480(Top 51%)9128(Top 60%)9128(Top 445%)
24M24.00 mi1.00 mi10685-938301-258301-2512692(Top 48%)8707(Top 57%)8707(Top 424%)
40K24.85 mi0.85 mi10788-1038330-298330-2913783(Top 52%)9136(Top 60%)9136(Top 445%)
25.2M25.20 mi0.35 mi10791-38317+138317+1311520(Top 43%)8034(Top 53%)8034(Top 392%)
Finish26.22 mi1.02 mi10887-968336-198336-1913145(Top 49%)8841(Top 58%)8841(Top 431%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 39%
×21stories
+97ft-345ft

Overall

10301

Males

8307

M50-54

8307

5K→10K

3.1 - 6.2 mi

Top 35%
×5stories
+79ft-138ft

Overall

9387

Males

7797

M50-54

7797

10K→15K

6.2 - 9.3 mi

Top 39%
×3stories
+67ft-78ft

Overall

10301

Males

8307

M50-54

8307

15K→20K

9.3 - 12.4 mi

Top 38%
×5stories
+106ft-86ft

Overall

10170

Males

8168

M50-54

8168

20K→Half

12.4 - 13.1 mi

Top 43%
×2stories
+19ft-37ft

Overall

11555

Males

8868

M50-54

8868

Half→25K

13.1 - 15.5 mi

Top 39%
×4stories
+66ft-88ft

Overall

10489

Males

8252

M50-54

8252

25K→30K

15.5 - 18.6 mi

Top 44%
×9stories
+181ft-148ft

Overall

11712

Males

8673

M50-54

8673

30K→20M

18.6 - 20.0 mi

Top 45%
×5stories
+64ft-50ft

Overall

11863

Males

8648

M50-54

8648

20M→21M

20.0 - 21.0 mi

Top 47%
×8stories
+106ft-24ft

Overall

12611

Males

8849

M50-54

8849

21M→35K

21.0 - 21.8 mi

Top 44%
×7stories
+17ft-86ft

Overall

11736

Males

8436

M50-54

8436

35K→23M

21.8 - 23.0 mi

Top 51%
×5stories
+23ft-63ft

Overall

13480

Males

9128

M50-54

9128

23M→24M

23.0 - 24.0 mi

Top 48%
×6stories
+12ft-82ft

Overall

12692

Males

8707

M50-54

8707

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

13783

Males

9136

M50-54

9136

40K→25.2M

24.9 - 25.2 mi

Top 43%
×1story
+13ft-16ft

Overall

11520

Males

8034

M50-54

8034

25.2M→Finish

25.2 - 26.2 mi

Top 49%
×2stories
+22ft-21ft

Overall

13145

Males

8841

M50-54

8841

Passing Analysis

Category:
Athletes Passed
843*
Passed By
2806
Net Change
-1964
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8923
5K → 10K189395-206#8923#9129
10K → 15K65392-327#9129#9456
15K → 20K88267-179#9456#9635
20K → Half5115-110#9635#9745
Half → 25K87195-109#9745#9854
25K → 30K80378-298#9854#10152
30K → 20M48*162-114#10152#10266
20M → 21M54191-137#10266#10403
21M → 35K3954-15#10403#10418
35K → 23M40214-174#10418#10592
23M → 24M41134-93#10592#10685
24M → 40K42145-103#10685#10788
40K → 25.2M2730-3#10788#10791
25.2M → Finish38134-96#10791#10887
TOTALS843*2806-1964

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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