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BOSTON MARATHON 2023

Erik Michielsens

Bib: 30568•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M45-49)
#0 / 2252
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
33:43
Rank: #25453
Start → 5K
33:43 | 10:51/mi
10K· 6.21 mi
1:06:59
Rank: #25224 (+229)
5K → 10K
33:16 | 10:42/mi
15K· 9.32 mi
1:39:54
Rank: #25011 (+213)
10K → 15K
32:55 | 10:36/mi
20K· 12.43 mi
2:13:37
Rank: #24852 (+159)
15K → 20K
33:43 | 10:51/mi
Half· 13.11 mi
2:21:03
Rank: #24847 (+5)
20K → Half
7:26 | 10:54/mi
25K· 15.53 mi
2:47:53
Rank: #24718 (+129)
Half → 25K
26:50 | 11:04/mi
30K· 18.64 mi
3:23:00
Rank: #24508 (+210)
25K → 30K
35:07 | 11:18/mi
20M
3:38:24
Rank: #24409 (+99)
30K → 20M
15:24 | 11:20/mi
21M
3:49:59
Rank: #24267 (+142)
20M → 21M
11:35 | 11:35/mi
35K· 21.75 mi
3:57:56
Rank: #24219 (+48)
21M → 35K
7:57 | 10:38/mi
23M
4:11:38
Rank: #24134 (+85)
35K → 23M
13:42 | 10:57/mi
24M
4:22:30
Rank: #24082 (+52)
23M → 24M
10:52 | 10:52/mi
40K· 24.85 mi
4:31:44
Rank: #24018 (+64)
24M → 40K
9:14 | 10:48/mi
25.2M
4:36:13
Rank: #24022 (-4)
40K → 25.2M
4:29 | 13:00/mi
Finish· 26.22 mi
4:47:19
Rank: #24012 (+10)
25.2M → Finish
11:06 | 10:54/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:21:03
Pace10:46 /mi
2nd Half
Distance13.11 mi
Time2:26:16
Pace11:09 /mi
📊Positive Split: 3.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:4033:4310:5133:43
10:51
-
10K
6.21 mi12:25:561:06:5910:4733:16
10:42
-0:09
15K
9.32 mi12:58:511:39:5410:4332:55
10:36
-0:06
20K
12.43 mi13:32:342:13:3710:4533:43
10:51
+0:15
Half
13.11 mi13:40:002:21:0310:467:26
10:54
+0:03
25K
15.53 mi14:06:502:47:5310:4826:50
11:04
+0:10
30K
18.64 mi14:41:573:23:0010:5335:07
11:18
+0:14
20M
20.00 mi14:57:213:38:2410:5515:24
11:20
+0:02
21M
21.00 mi15:08:563:49:5910:5711:35
11:35
+0:15
35K
21.75 mi15:16:533:57:5610:567:57
10:38
-0:57
23M
23.00 mi15:30:354:11:3810:5613:42
10:57
+0:19
24M
24.00 mi15:41:274:22:3010:5610:52
10:52
-0:05
40K
24.85 mi15:50:414:31:4410:569:14
10:48
-0:04
25.2M
25.20 mi15:55:104:36:1310:584:29
13:00
+2:12
Finish
26.22 mi16:06:164:47:1910:5811:06
10:54
-2:06

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

10:36 /mi

Average Pace

10:58 /mi

Slowest Pace

13:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

32:55

11% of race

Time at Steady Pace

3:07:49

65% of race

Time at Slower Pace

1:06:35

23% of race

Average Pace: 10:57 /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 mi11:52:4033:4310:5133:43
10:51
#25453
10K
6.21 mi12:25:561:06:5910:4733:16
10:42
#25224
15K
9.32 mi12:58:511:39:5410:4332:55
10:36
#25011
20K
12.43 mi13:32:342:13:3710:4533:43
10:51
#24852
Half
13.11 mi13:40:002:21:0310:467:26
10:54
#24847
25K
15.53 mi14:06:502:47:5310:4826:50
11:04
#24718
30K
18.64 mi14:41:573:23:0010:5335:07
11:18
#24508
20M
20.00 mi14:57:213:38:2410:5515:24
11:20
#24409
21M
21.00 mi15:08:563:49:5910:5711:35
11:35
#24267
35K
21.75 mi15:16:533:57:5610:567:57
10:38
#24219
23M
23.00 mi15:30:354:11:3810:5613:42
10:57
#24134
24M
24.00 mi15:41:274:22:3010:5610:52
10:52
#24082
40K
24.85 mi15:50:414:31:4410:569:14
10:48
#24018
25.2M
25.20 mi15:55:104:36:1310:584:29
13:00
#24022
Finish
26.22 mi16:06:164:47:1910:5811:06
10:54
#24012
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi25453147331473324615(Top 92%)14352(Top 95%)14352(Top 637%)
10K6.21 mi3.10 mi25224+22914649+8414649+8425032(Top 94%)14550(Top 96%)14550(Top 646%)
15K9.32 mi3.11 mi25011+21314549+10014549+10024615(Top 92%)14352(Top 95%)14352(Top 637%)
20K12.43 mi3.11 mi24852+15914461+8814461+8824393(Top 92%)14225(Top 94%)14225(Top 632%)
Half13.11 mi0.68 mi24847+514456+514456+524786(Top 93%)14394(Top 95%)14394(Top 639%)
25K15.53 mi2.42 mi24718+12914388+6814388+6824082(Top 90%)14064(Top 93%)14064(Top 625%)
30K18.64 mi3.11 mi24508+21014278+11014278+11023587(Top 89%)13790(Top 91%)13790(Top 612%)
20M20.00 mi1.36 mi24409+9914226+5214226+5223236(Top 87%)13569(Top 89%)13569(Top 603%)
21M21.00 mi1.00 mi24267+14214149+7714149+7722018(Top 83%)13001(Top 86%)13001(Top 577%)
35K21.75 mi0.75 mi24219+4814120+2914120+2922633(Top 85%)13230(Top 87%)13230(Top 587%)
23M23.00 mi1.25 mi24134+8514073+4714073+4722230(Top 84%)13028(Top 86%)13028(Top 579%)
24M24.00 mi1.00 mi24082+5214047+2614047+2622779(Top 86%)13247(Top 87%)13247(Top 588%)
40K24.85 mi0.85 mi24018+6414015+3214015+3221936(Top 82%)12799(Top 84%)12799(Top 568%)
25.2M25.20 mi0.35 mi24022-414014+114014+123958(Top 90%)13775(Top 91%)13775(Top 612%)
Finish26.22 mi1.02 mi24012+1014006+814006+823775(Top 89%)13713(Top 90%)13713(Top 609%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 92%
×21stories
+97ft-345ft

Overall

24615

Males

14352

M45-49

14352

5K→10K

3.1 - 6.2 mi

Top 94%
×5stories
+79ft-138ft

Overall

25032

Males

14550

M45-49

14550

10K→15K

6.2 - 9.3 mi

Top 92%
×3stories
+67ft-78ft

Overall

24615

Males

14352

M45-49

14352

15K→20K

9.3 - 12.4 mi

Top 92%
×5stories
+106ft-86ft

Overall

24393

Males

14225

M45-49

14225

20K→Half

12.4 - 13.1 mi

Top 93%
×2stories
+19ft-37ft

Overall

24786

Males

14394

M45-49

14394

Half→25K

13.1 - 15.5 mi

Top 90%
×4stories
+66ft-88ft

Overall

24082

Males

14064

M45-49

14064

25K→30K

15.5 - 18.6 mi

Top 89%
×9stories
+181ft-148ft

Overall

23587

Males

13790

M45-49

13790

30K→20M

18.6 - 20.0 mi

Top 87%
×5stories
+64ft-50ft

Overall

23236

Males

13569

M45-49

13569

20M→21M

20.0 - 21.0 mi

Top 83%
×8stories
+106ft-24ft

Overall

22018

Males

13001

M45-49

13001

21M→35K

21.0 - 21.8 mi

Top 85%
×7stories
+17ft-86ft

Overall

22633

Males

13230

M45-49

13230

35K→23M

21.8 - 23.0 mi

Top 84%
×5stories
+23ft-63ft

Overall

22230

Males

13028

M45-49

13028

23M→24M

23.0 - 24.0 mi

Top 86%
×6stories
+12ft-82ft

Overall

22779

Males

13247

M45-49

13247

24M→40K

24.0 - 24.9 mi

Top 82%
×1story
+6ft-20ft

Overall

21936

Males

12799

M45-49

12799

40K→25.2M

24.9 - 25.2 mi

Top 90%
×1story
+13ft-16ft

Overall

23958

Males

13775

M45-49

13775

25.2M→Finish

25.2 - 26.2 mi

Top 89%
×2stories
+22ft-21ft

Overall

23775

Males

13713

M45-49

13713

Passing Analysis

Category:
Athletes Passed
1682
Passed By
241
Net Change
+1441
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25453
5K → 10K30071+229#25453#25224
10K → 15K23522+213#25224#25011
15K → 20K19536+159#25011#24852
20K → Half2116+5#24852#24847
Half → 25K15021+129#24847#24718
25K → 30K22616+210#24718#24508
30K → 20M1023+99#24508#24409
20M → 21M1486+142#24409#24267
21M → 35K513+48#24267#24219
35K → 23M894+85#24219#24134
23M → 24M6210+52#24134#24082
24M → 40K673+64#24082#24018
40K → 25.2M59-4#24018#24022
25.2M → Finish3121+10#24022#24012
TOTALS1682241+1441
📊

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