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BOSTON MARATHON 2023

Stephen Hielkema

Bib: 21016•M

OH

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M60-64)
#0 / 1110
Top 50%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:42
Rank: #18179
Start → 5K
26:42 | 8:36/mi
10K· 6.21 mi
52:54
Rank: #17979 (+200)
5K → 10K
26:12 | 8:26/mi
15K· 9.32 mi
1:18:58
Rank: #17667 (+312)
10K → 15K
26:04 | 8:23/mi
20K· 12.43 mi
1:45:18
Rank: #17391 (+276)
15K → 20K
26:20 | 8:29/mi
Half· 13.11 mi
1:51:06
Rank: #17397 (-6)
20K → Half
5:48 | 8:30/mi
25K· 15.53 mi
2:12:22
Rank: #17458 (-61)
Half → 25K
21:16 | 8:46/mi
30K· 18.64 mi
2:40:39
Rank: #17477 (-19)
25K → 30K
28:17 | 9:06/mi
20M
2:53:10
Rank: #17468 (+9)
30K → 20M
12:31 | 9:13/mi
21M
3:02:51
Rank: #17421 (+47)
20M → 21M
9:41 | 9:41/mi
35K· 21.75 mi
3:09:45
Rank: #17496 (-75)
21M → 35K
6:54 | 9:13/mi
23M
3:21:41
Rank: #17565 (-69)
35K → 23M
11:56 | 9:32/mi
24M
3:30:56
Rank: #17639 (-74)
23M → 24M
9:15 | 9:15/mi
40K· 24.85 mi
3:38:45
Rank: #17623 (+16)
24M → 40K
7:49 | 9:09/mi
25.2M
3:41:49
Rank: #17527 (+96)
40K → 25.2M
3:04 | 8:54/mi
Finish· 26.22 mi
3:49:53
Rank: #17318 (+209)
25.2M → Finish
8:04 | 7:55/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:51:06
Pace8:28 /mi
2nd Half
Distance13.11 mi
Time1:58:47
Pace9:04 /mi
📊Positive Split: 6.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:4826:428:3626:42
8:36
-
10K
6.21 mi11:48:0052:548:3126:12
8:26
-0:10
15K
9.32 mi12:14:041:18:588:2826:04
8:23
-0:03
20K
12.43 mi12:40:241:45:188:2826:20
8:29
+0:06
Half
13.11 mi12:46:121:51:068:285:48
8:30
+0:01
25K
15.53 mi13:07:282:12:228:3121:16
8:46
+0:16
30K
18.64 mi13:35:452:40:398:3728:17
9:06
+0:20
20M
20.00 mi13:48:162:53:108:3912:31
9:13
+0:07
21M
21.00 mi13:57:573:02:518:429:41
9:41
+0:28
35K
21.75 mi14:04:513:09:458:436:54
9:13
-0:28
23M
23.00 mi14:16:473:21:418:4611:56
9:32
+0:19
24M
24.00 mi14:26:023:30:568:479:15
9:15
-0:17
40K
24.85 mi14:33:513:38:458:487:49
9:09
-0:06
25.2M
25.20 mi14:36:553:41:498:483:04
8:54
-0:15
Finish
26.22 mi14:44:593:49:538:468:04
7:55
-0:59

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

8:46 /mi

Slowest Pace

9:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:59:10

52% of race

Time at Steady Pace

52:37

23% of race

Time at Slower Pace

58:06

25% of race

Average Pace: 8:46 /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 mi11:21:4826:428:3626:42
8:36
#18179
10K
6.21 mi11:48:0052:548:3126:12
8:26
#17979
15K
9.32 mi12:14:041:18:588:2826:04
8:23
#17667
20K
12.43 mi12:40:241:45:188:2826:20
8:29
#17391
Half
13.11 mi12:46:121:51:068:285:48
8:30
#17397
25K
15.53 mi13:07:282:12:228:3121:16
8:46
#17458
30K
18.64 mi13:35:452:40:398:3728:17
9:06
#17477
20M
20.00 mi13:48:162:53:108:3912:31
9:13
#17468
21M
21.00 mi13:57:573:02:518:429:41
9:41
#17421
35K
21.75 mi14:04:513:09:458:436:54
9:13
#17496
23M
23.00 mi14:16:473:21:418:4611:56
9:32
#17565
24M
24.00 mi14:26:023:30:568:479:15
9:15
#17639
40K
24.85 mi14:33:513:38:458:487:49
9:09
#17623
25.2M
25.20 mi14:36:553:41:498:483:04
8:54
#17527
Finish
26.22 mi14:44:593:49:538:468:04
7:55
#17318
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi18179114891148917079(Top 64%)11088(Top 73%)11088(Top 999%)
10K6.21 mi3.10 mi17979+20011435+5411435+5417801(Top 67%)11407(Top 75%)11407(Top 1028%)
15K9.32 mi3.11 mi17667+31211331+10411331+10417079(Top 64%)11088(Top 73%)11088(Top 999%)
20K12.43 mi3.11 mi17391+27611219+11211219+11216696(Top 63%)10923(Top 72%)10923(Top 984%)
Half13.11 mi0.68 mi17397-611216+311216+317683(Top 66%)11371(Top 75%)11371(Top 1024%)
25K15.53 mi2.42 mi17458-6111223-711223-717776(Top 67%)11309(Top 75%)11309(Top 1019%)
30K18.64 mi3.11 mi17477-1911216+711216+717699(Top 66%)11210(Top 74%)11210(Top 1010%)
20M20.00 mi1.36 mi17468+911191+2511191+2517582(Top 66%)11057(Top 73%)11057(Top 996%)
21M21.00 mi1.00 mi17421+4711155+3611155+3616757(Top 63%)10691(Top 70%)10691(Top 963%)
35K21.75 mi0.75 mi17496-7511172-1711172-1718810(Top 71%)11497(Top 76%)11497(Top 1036%)
23M23.00 mi1.25 mi17565-6911184-1211184-1218434(Top 69%)11317(Top 75%)11317(Top 1020%)
24M24.00 mi1.00 mi17639-7411198-1411198-1418238(Top 69%)11189(Top 74%)11189(Top 1008%)
40K24.85 mi0.85 mi17623+1611185+1311185+1316809(Top 63%)10497(Top 69%)10497(Top 946%)
25.2M25.20 mi0.35 mi17527+9611140+4511140+4511895(Top 45%)8238(Top 54%)8238(Top 742%)
Finish26.22 mi1.02 mi17318+20911042+9811042+9811506(Top 43%)8054(Top 53%)8054(Top 726%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 64%
×21stories
+97ft-345ft

Overall

17079

Males

11088

M60-64

11088

5K→10K

3.1 - 6.2 mi

Top 67%
×5stories
+79ft-138ft

Overall

17801

Males

11407

M60-64

11407

10K→15K

6.2 - 9.3 mi

Top 64%
×3stories
+67ft-78ft

Overall

17079

Males

11088

M60-64

11088

15K→20K

9.3 - 12.4 mi

Top 63%
×5stories
+106ft-86ft

Overall

16696

Males

10923

M60-64

10923

20K→Half

12.4 - 13.1 mi

Top 66%
×2stories
+19ft-37ft

Overall

17683

Males

11371

M60-64

11371

Half→25K

13.1 - 15.5 mi

Top 67%
×4stories
+66ft-88ft

Overall

17776

Males

11309

M60-64

11309

25K→30K

15.5 - 18.6 mi

Top 66%
×9stories
+181ft-148ft

Overall

17699

Males

11210

M60-64

11210

30K→20M

18.6 - 20.0 mi

Top 66%
×5stories
+64ft-50ft

Overall

17582

Males

11057

M60-64

11057

20M→21M

20.0 - 21.0 mi

Top 63%
×8stories
+106ft-24ft

Overall

16757

Males

10691

M60-64

10691

21M→35K

21.0 - 21.8 mi

Top 71%
×7stories
+17ft-86ft

Overall

18810

Males

11497

M60-64

11497

35K→23M

21.8 - 23.0 mi

Top 69%
×5stories
+23ft-63ft

Overall

18434

Males

11317

M60-64

11317

23M→24M

23.0 - 24.0 mi

Top 69%
×6stories
+12ft-82ft

Overall

18238

Males

11189

M60-64

11189

24M→40K

24.0 - 24.9 mi

Top 63%
×1story
+6ft-20ft

Overall

16809

Males

10497

M60-64

10497

40K→25.2M

24.9 - 25.2 mi

Top 45%
×1story
+13ft-16ft

Overall

11895

Males

8238

M60-64

8238

25.2M→Finish

25.2 - 26.2 mi

Top 43%
×2stories
+22ft-21ft

Overall

11506

Males

8054

M60-64

8054

Passing Analysis

Category:
Athletes Passed
2152
Passed By
1291
Net Change
+861
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18179
5K → 10K433233+200#18179#17979
10K → 15K38169+312#17979#17667
15K → 20K33660+276#17667#17391
20K → Half2430-6#17391#17397
Half → 25K113174-61#17397#17458
25K → 30K165184-19#17458#17477
30K → 20M8778+9#17477#17468
20M → 21M10457+47#17468#17421
21M → 35K32107-75#17421#17496
35K → 23M65134-69#17496#17565
23M → 24M41115-74#17565#17639
24M → 40K6246+16#17639#17623
40K → 25.2M993+96#17623#17527
25.2M → Finish2101+209#17527#17318
TOTALS21521291+861
📊

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