Boston Marathon logo
BOSTON MARATHON 2024

Andrew De Klerk

Bib: 10219•M

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 25550
Top 31%
Gender (Male)
#0 / 14578
Top 43%
Masters (Masters Men)
#0 / 9729
Top 32%
Division (M45-49)
#0 / 2218
Top 44%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:38
Rank: #6830
Start → 5K
21:38 | 6:58/mi
10K· 6.21 mi
43:13
Rank: #6531 (+299)
5K → 10K
21:35 | 6:57/mi
15K· 9.32 mi
1:04:59
Rank: #6412 (+119)
10K → 15K
21:46 | 7:00/mi
20K· 12.43 mi
1:27:04
Rank: #6210 (+202)
15K → 20K
22:05 | 7:06/mi
Half· 13.11 mi
1:31:52
Rank: #6184 (+26)
20K → Half
4:48 | 7:02/mi
25K· 15.53 mi
1:49:17
Rank: #5927 (+257)
Half → 25K
17:25 | 7:11/mi
30K· 18.64 mi
2:13:54
Rank: #6067 (-140)
25K → 30K
24:37 | 7:55/mi
20M
2:26:18
Rank: #6519 (-452)
30K → 20M
12:24 | 9:07/mi
21M
2:36:38
Rank: #6937 (-418)
20M → 21M
10:20 | 10:20/mi
35K· 21.75 mi
2:43:14
Rank: #7118 (-181)
21M → 35K
6:36 | 8:49/mi
23M
2:54:54
Rank: #7407 (-289)
35K → 23M
11:40 | 9:19/mi
24M
3:03:51
Rank: #7563 (-156)
23M → 24M
8:57 | 8:57/mi
40K· 24.85 mi
3:11:41
Rank: #7703 (-140)
24M → 40K
7:50 | 9:10/mi
25.2M
3:15:11
Rank: #7755 (-52)
40K → 25.2M
3:30 | 10:09/mi
Finish· 26.22 mi
3:24:04
Rank: #7940 (-185)
25.2M → Finish
8:53 | 8:43/mi

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:31:52
Pace7:00 /mi
2nd Half
Distance13.11 mi
Time1:52:12
Pace8:34 /mi
📊Positive Split: 22.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:0421:386:5821:38
6:58
-
10K
6.21 mi11:09:3943:136:5721:35
6:57
-0:01
15K
9.32 mi11:31:251:04:596:5821:46
7:00
+0:03
20K
12.43 mi11:53:301:27:047:0022:05
7:06
+0:06
Half
13.11 mi11:58:181:31:527:004:48
7:02
-0:04
25K
15.53 mi12:15:431:49:177:0217:25
7:11
+0:09
30K
18.64 mi12:40:202:13:547:1124:37
7:55
+0:44
20M
20.00 mi12:52:442:26:187:1912:24
9:07
+1:12
21M
21.00 mi13:03:042:36:387:2810:20
10:20
+1:13
35K
21.75 mi13:09:402:43:147:306:36
8:49
-1:31
23M
23.00 mi13:21:202:54:547:3611:40
9:19
+0:30
24M
24.00 mi13:30:173:03:517:408:57
8:57
-0:22
40K
24.85 mi13:38:073:11:417:437:50
9:10
+0:13
25.2M
25.20 mi13:41:373:15:117:453:30
10:09
+0:59
Finish
26.22 mi13:50:303:24:047:478:53
8:43
-1:26

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

6:57 /mi

Average Pace

7:47 /mi

Slowest Pace

10:20 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:13:54

66% of race

Time at Steady Pace

44:40

22% of race

Time at Slower Pace

25:30

12% of race

Average Pace: 7:47 /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 mi10:48:0421:386:5821:38
6:58
#6830
10K
6.21 mi11:09:3943:136:5721:35
6:57
#6531
15K
9.32 mi11:31:251:04:596:5821:46
7:00
#6412
20K
12.43 mi11:53:301:27:047:0022:05
7:06
#6210
Half
13.11 mi11:58:181:31:527:004:48
7:02
#6184
25K
15.53 mi12:15:431:49:177:0217:25
7:11
#5927
30K
18.64 mi12:40:202:13:547:1124:37
7:55
#6067
20M
20.00 mi12:52:442:26:187:1912:24
9:07
#6519
21M
21.00 mi13:03:042:36:387:2810:20
10:20
#6937
35K
21.75 mi13:09:402:43:147:306:36
8:49
#7118
23M
23.00 mi13:21:202:54:547:3611:40
9:19
#7407
24M
24.00 mi13:30:173:03:517:408:57
8:57
#7563
40K
24.85 mi13:38:073:11:417:437:50
9:10
#7703
25.2M
25.20 mi13:41:373:15:117:453:30
10:09
#7755
Finish
26.22 mi13:50:303:24:047:478:53
8:43
#7940
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi6830605060506243(Top 24%)5563(Top 38%)5563(Top 251%)
10K6.21 mi3.10 mi6531+2995813+2375813+2376326(Top 25%)5646(Top 39%)5646(Top 255%)
15K9.32 mi3.11 mi6412+1195719+945719+946243(Top 24%)5563(Top 38%)5563(Top 251%)
20K12.43 mi3.11 mi6210+2025547+1725547+1725848(Top 23%)5212(Top 36%)5212(Top 235%)
Half13.11 mi0.68 mi6184+265521+265521+265978(Top 23%)5318(Top 36%)5318(Top 240%)
25K15.53 mi2.42 mi5927+2575307+2145307+2145217(Top 20%)4639(Top 32%)4639(Top 209%)
30K18.64 mi3.11 mi6067-1405348-415348-417431(Top 29%)5885(Top 40%)5885(Top 265%)
20M20.00 mi1.36 mi6519-4525630-2825630-28212734(Top 50%)8279(Top 57%)8279(Top 373%)
21M21.00 mi1.00 mi6937-4185861-2315861-23114230(Top 56%)8764(Top 60%)8764(Top 395%)
35K21.75 mi0.75 mi7118-1815955-945955-9412410(Top 49%)7881(Top 54%)7881(Top 355%)
23M23.00 mi1.25 mi7407-2896066-1116066-11112652(Top 50%)7879(Top 54%)7879(Top 355%)
24M24.00 mi1.00 mi7563-1566105-396105-3911861(Top 46%)7496(Top 51%)7496(Top 338%)
40K24.85 mi0.85 mi7703-1406149-446149-4411564(Top 45%)7202(Top 49%)7202(Top 325%)
25.2M25.20 mi0.35 mi7755-526155-66155-611461(Top 45%)7101(Top 49%)7101(Top 320%)
Finish26.22 mi1.02 mi7940-1856209-546209-5412689(Top 50%)7850(Top 54%)7850(Top 354%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 24%
×21stories
+97ft-345ft

Overall

6243

Males

5563

M45-49

5563

5K→10K

3.1 - 6.2 mi

Top 25%
×5stories
+79ft-138ft

Overall

6326

Males

5646

M45-49

5646

10K→15K

6.2 - 9.3 mi

Top 24%
×3stories
+67ft-78ft

Overall

6243

Males

5563

M45-49

5563

15K→20K

9.3 - 12.4 mi

Top 23%
×5stories
+106ft-86ft

Overall

5848

Males

5212

M45-49

5212

20K→Half

12.4 - 13.1 mi

Top 23%
×2stories
+19ft-37ft

Overall

5978

Males

5318

M45-49

5318

Half→25K

13.1 - 15.5 mi

Top 20%
×4stories
+66ft-88ft

Overall

5217

Males

4639

M45-49

4639

25K→30K

15.5 - 18.6 mi

Top 29%
×9stories
+181ft-148ft

Overall

7431

Males

5885

M45-49

5885

30K→20M

18.6 - 20.0 mi

Top 50%
×5stories
+64ft-50ft

Overall

12734

Males

8279

M45-49

8279

20M→21M

20.0 - 21.0 mi

Top 56%
×8stories
+106ft-24ft

Overall

14230

Males

8764

M45-49

8764

21M→35K

21.0 - 21.8 mi

Top 49%
×7stories
+17ft-86ft

Overall

12410

Males

7881

M45-49

7881

35K→23M

21.8 - 23.0 mi

Top 50%
×5stories
+23ft-63ft

Overall

12652

Males

7879

M45-49

7879

23M→24M

23.0 - 24.0 mi

Top 46%
×6stories
+12ft-82ft

Overall

11861

Males

7496

M45-49

7496

24M→40K

24.0 - 24.9 mi

Top 45%
×1story
+6ft-20ft

Overall

11564

Males

7202

M45-49

7202

40K→25.2M

24.9 - 25.2 mi

Top 45%
×1story
+13ft-16ft

Overall

11461

Males

7101

M45-49

7101

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2stories
+22ft-21ft

Overall

12689

Males

7850

M45-49

7850

Passing Analysis

Category:
Athletes Passed
1671
Passed By
2781
Net Change
-1110
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6830
5K → 10K37172+299#6830#6531
10K → 15K19677+119#6531#6412
15K → 20K27472+202#6412#6210
20K → Half4014+26#6210#6184
Half → 25K29841+257#6184#5927
25K → 30K161301-140#5927#6067
30K → 20M35487-452#6067#6519
20M → 21M33451-418#6519#6937
21M → 35K34215-181#6937#7118
35K → 23M59348-289#7118#7407
23M → 24M59215-156#7407#7563
24M → 40K46186-140#7563#7703
40K → 25.2M2779-52#7703#7755
25.2M → Finish38223-185#7755#7940
TOTALS16712781-1110
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing