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BOSTON MARATHON 2024

Xander Schelfhout

Bib: 4929•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 7%
Gender (Male)
#0 / 14578
Top 12%
Masters (Masters Men)
#0 / 9729
Top 4%
Division (M45-49)
#0 / 2218
Top 5%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:18
Rank: #3523
Start → 5K
20:18 | 6:32/mi
10K· 6.21 mi
40:40
Rank: #3415 (+108)
5K → 10K
20:22 | 6:33/mi
15K· 9.32 mi
1:01:06
Rank: #3306 (+109)
10K → 15K
20:26 | 6:35/mi
20K· 12.43 mi
1:21:42
Rank: #3115 (+191)
15K → 20K
20:36 | 6:38/mi
Half· 13.11 mi
1:26:08
Rank: #3075 (+40)
20K → Half
4:26 | 6:30/mi
25K· 15.53 mi
1:42:16
Rank: #2883 (+192)
Half → 25K
16:08 | 6:39/mi
30K· 18.64 mi
2:03:16
Rank: #2568 (+315)
25K → 30K
21:00 | 6:46/mi
20M
2:12:30
Rank: #2421 (+147)
30K → 20M
9:14 | 6:48/mi
21M
2:19:37
Rank: #2302 (+119)
20M → 21M
7:07 | 7:07/mi
35K· 21.75 mi
2:24:37
Rank: #2249 (+53)
21M → 35K
5:00 | 6:41/mi
23M
2:33:10
Rank: #2137 (+112)
35K → 23M
8:33 | 6:50/mi
24M
2:39:50
Rank: #2030 (+107)
23M → 24M
6:40 | 6:40/mi
40K· 24.85 mi
2:45:33
Rank: #1950 (+80)
24M → 40K
5:43 | 6:41/mi
25.2M
2:48:04
Rank: #1919 (+31)
40K → 25.2M
2:31 | 7:18/mi
Finish· 26.22 mi
2:54:45
Rank: #1862 (+57)
25.2M → Finish
6:41 | 6:34/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:26:08
Pace6:34 /mi
2nd Half
Distance13.11 mi
Time1:28:37
Pace6:46 /mi
📊Positive Split: 2.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:3820:186:3220:18
6:32
-
10K
6.21 mi10:44:0040:406:3320:22
6:33
+0:01
15K
9.32 mi11:04:261:01:066:3320:26
6:35
+0:02
20K
12.43 mi11:25:021:21:426:3420:36
6:38
+0:03
Half
13.11 mi11:29:281:26:086:344:26
6:30
-0:08
25K
15.53 mi11:45:361:42:166:3516:08
6:39
+0:09
30K
18.64 mi12:06:362:03:166:3721:00
6:46
+0:07
20M
20.00 mi12:15:502:12:306:379:14
6:48
+0:02
21M
21.00 mi12:22:572:19:376:397:07
7:07
+0:19
35K
21.75 mi12:27:572:24:376:395:00
6:41
-0:26
23M
23.00 mi12:36:302:33:106:408:33
6:50
+0:09
24M
24.00 mi12:43:102:39:506:406:40
6:40
-0:10
40K
24.85 mi12:48:532:45:336:405:43
6:41
+0:01
25.2M
25.20 mi12:51:242:48:046:402:31
7:18
+0:37
Finish
26.22 mi12:58:052:54:456:406:41
6:34
-0:44

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

6:30 /mi

Average Pace

6:40 /mi

Slowest Pace

7:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:52:14

99% of race

Time at Steady Pace

2:31

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:40 /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 mi10:23:3820:186:3220:18
6:32
#3523
10K
6.21 mi10:44:0040:406:3320:22
6:33
#3415
15K
9.32 mi11:04:261:01:066:3320:26
6:35
#3306
20K
12.43 mi11:25:021:21:426:3420:36
6:38
#3115
Half
13.11 mi11:29:281:26:086:344:26
6:30
#3075
25K
15.53 mi11:45:361:42:166:3516:08
6:39
#2883
30K
18.64 mi12:06:362:03:166:3721:00
6:46
#2568
20M
20.00 mi12:15:502:12:306:379:14
6:48
#2421
21M
21.00 mi12:22:572:19:376:397:07
7:07
#2302
35K
21.75 mi12:27:572:24:376:395:00
6:41
#2249
23M
23.00 mi12:36:302:33:106:408:33
6:50
#2137
24M
24.00 mi12:43:102:39:506:406:40
6:40
#2030
40K
24.85 mi12:48:532:45:336:405:43
6:41
#1950
25.2M
25.20 mi12:51:242:48:046:402:31
7:18
#1919
Finish
26.22 mi12:58:052:54:456:406:41
6:34
#1862
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi3523335133513117(Top 12%)2969(Top 20%)2969(Top 134%)
10K6.21 mi3.10 mi3415+1083246+1053246+1053332(Top 13%)3166(Top 22%)3166(Top 143%)
15K9.32 mi3.11 mi3306+1093145+1013145+1013117(Top 12%)2969(Top 20%)2969(Top 134%)
20K12.43 mi3.11 mi3115+1912971+1742971+1742776(Top 11%)2649(Top 18%)2649(Top 119%)
Half13.11 mi0.68 mi3075+402932+392932+392561(Top 10%)2446(Top 17%)2446(Top 110%)
25K15.53 mi2.42 mi2883+1922750+1822750+1822380(Top 9%)2268(Top 16%)2268(Top 102%)
30K18.64 mi3.11 mi2568+3152446+3042446+3041783(Top 7%)1697(Top 12%)1697(Top 77%)
20M20.00 mi1.36 mi2421+1472313+1332313+1331578(Top 6%)1496(Top 10%)1496(Top 67%)
21M21.00 mi1.00 mi2302+1192200+1132200+1131350(Top 5%)1275(Top 9%)1275(Top 57%)
35K21.75 mi0.75 mi2249+532148+522148+521824(Top 7%)1691(Top 12%)1691(Top 76%)
23M23.00 mi1.25 mi2137+1122043+1052043+1051388(Top 5%)1304(Top 9%)1304(Top 59%)
24M24.00 mi1.00 mi2030+1071939+1041939+1041299(Top 5%)1211(Top 8%)1211(Top 55%)
40K24.85 mi0.85 mi1950+801861+781861+781063(Top 4%)987(Top 7%)987(Top 44%)
25.2M25.20 mi0.35 mi1919+311832+291832+291032(Top 4%)953(Top 7%)953(Top 43%)
Finish26.22 mi1.02 mi1862+571776+561776+561539(Top 6%)1382(Top 9%)1382(Top 62%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 12%
×21stories
+97ft-345ft

Overall

3117

Males

2969

M45-49

2969

5K→10K

3.1 - 6.2 mi

Top 13%
×5stories
+79ft-138ft

Overall

3332

Males

3166

M45-49

3166

10K→15K

6.2 - 9.3 mi

Top 12%
×3stories
+67ft-78ft

Overall

3117

Males

2969

M45-49

2969

15K→20K

9.3 - 12.4 mi

Top 11%
×5stories
+106ft-86ft

Overall

2776

Males

2649

M45-49

2649

20K→Half

12.4 - 13.1 mi

Top 10%
×2stories
+19ft-37ft

Overall

2561

Males

2446

M45-49

2446

Half→25K

13.1 - 15.5 mi

Top 9%
×4stories
+66ft-88ft

Overall

2380

Males

2268

M45-49

2268

25K→30K

15.5 - 18.6 mi

Top 7%
×9stories
+181ft-148ft

Overall

1783

Males

1697

M45-49

1697

30K→20M

18.6 - 20.0 mi

Top 6%
×5stories
+64ft-50ft

Overall

1578

Males

1496

M45-49

1496

20M→21M

20.0 - 21.0 mi

Top 5%
×8stories
+106ft-24ft

Overall

1350

Males

1275

M45-49

1275

21M→35K

21.0 - 21.8 mi

Top 7%
×7stories
+17ft-86ft

Overall

1824

Males

1691

M45-49

1691

35K→23M

21.8 - 23.0 mi

Top 5%
×5stories
+23ft-63ft

Overall

1388

Males

1304

M45-49

1304

23M→24M

23.0 - 24.0 mi

Top 5%
×6stories
+12ft-82ft

Overall

1299

Males

1211

M45-49

1211

24M→40K

24.0 - 24.9 mi

Top 4%
×1story
+6ft-20ft

Overall

1063

Males

987

M45-49

987

40K→25.2M

24.9 - 25.2 mi

Top 4%
×1story
+13ft-16ft

Overall

1032

Males

953

M45-49

953

25.2M→Finish

25.2 - 26.2 mi

Top 6%
×2stories
+22ft-21ft

Overall

1539

Males

1382

M45-49

1382

Passing Analysis

Category:
Athletes Passed
1904
Passed By
243
Net Change
+1661
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3523
5K → 10K19284+108#3523#3415
10K → 15K15142+109#3415#3306
15K → 20K22635+191#3306#3115
20K → Half444+40#3115#3075
Half → 25K20614+192#3075#2883
25K → 30K33318+315#2883#2568
30K → 20M1547+147#2568#2421
20M → 21M1256+119#2421#2302
21M → 35K607+53#2302#2249
35K → 23M12412+112#2249#2137
23M → 24M1092+107#2137#2030
24M → 40K833+80#2030#1950
40K → 25.2M321+31#1950#1919
25.2M → Finish658+57#1919#1862
TOTALS1904243+1661
📊

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