Boston Marathon logo
BOSTON MARATHON 2024

Nicolas Veldhorst

Bib: 2173•M

WA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 25550
Top 2%
Gender (Male)
#0 / 14578
Top 3%
Division (M18-39)
#0 / 4849
Top 8%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:27
Rank: #1870
Start → 5K
19:27 | 6:16/mi
10K· 6.21 mi
38:49
Rank: #1731 (+139)
5K → 10K
19:22 | 6:14/mi
15K· 9.32 mi
58:00
Rank: #1551 (+180)
10K → 15K
19:11 | 6:10/mi
20K· 12.43 mi
1:17:12
Rank: #1369 (+182)
15K → 20K
19:12 | 6:11/mi
Half· 13.11 mi
1:21:17
Rank: #1322 (+47)
20K → Half
4:05 | 5:59/mi
25K· 15.53 mi
1:35:58
Rank: #1137 (+185)
Half → 25K
14:41 | 6:03/mi
30K· 18.64 mi
1:54:49
Rank: #896 (+241)
25K → 30K
18:51 | 6:04/mi
20M
2:03:03
Rank: #787 (+109)
30K → 20M
8:14 | 6:04/mi
21M
2:09:21
Rank: #713 (+74)
20M → 21M
6:18 | 6:18/mi
35K· 21.75 mi
2:13:43
Rank: #683 (+30)
21M → 35K
4:22 | 5:50/mi
23M
2:21:20
Rank: #609 (+74)
35K → 23M
7:37 | 6:05/mi
24M
2:27:19
Rank: #560 (+49)
23M → 24M
5:59 | 5:59/mi
40K· 24.85 mi
2:32:34
Rank: #523 (+37)
24M → 40K
5:15 | 6:08/mi
25.2M
2:34:54
Rank: #518 (+5)
40K → 25.2M
2:20 | 6:46/mi
Finish· 26.22 mi
2:40:57
Rank: #493 (+25)
25.2M → Finish
6:03 | 5:56/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 Half
Distance13.11 mi
Time1:21:17
Pace6:12 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:19:40
Pace6:05 /mi
📊Negative Split: 2.0% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:3519:276:1619:27
6:16
-
10K
6.21 mi10:39:5738:496:1519:22
6:14
-0:02
15K
9.32 mi10:59:0858:006:1319:11
6:10
-0:04
20K
12.43 mi11:18:201:17:126:1319:12
6:11
+0:01
Half
13.11 mi11:22:251:21:176:124:05
5:59
-0:12
25K
15.53 mi11:37:061:35:586:1114:41
6:03
+0:04
30K
18.64 mi11:55:571:54:496:1018:51
6:04
+0:01
20M
20.00 mi12:04:112:03:036:098:14
6:04
0:00
21M
21.00 mi12:10:292:09:216:106:18
6:18
+0:14
35K
21.75 mi12:14:512:13:436:094:22
5:50
-0:28
23M
23.00 mi12:22:282:21:206:097:37
6:05
+0:15
24M
24.00 mi12:28:272:27:196:085:59
5:59
-0:06
40K
24.85 mi12:33:422:32:346:085:15
6:08
+0:09
25.2M
25.20 mi12:36:022:34:546:092:20
6:46
+0:38
Finish
26.22 mi12:42:052:40:576:096:03
5:56
-0:50

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

5:50 /mi

Average Pace

6:09 /mi

Slowest Pace

6:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:38:37

99% of race

Time at Steady Pace

2:20

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:08 /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 mi10:20:3519:276:1619:27
6:16
#1870
10K
6.21 mi10:39:5738:496:1519:22
6:14
#1731
15K
9.32 mi10:59:0858:006:1319:11
6:10
#1551
20K
12.43 mi11:18:201:17:126:1319:12
6:11
#1369
Half
13.11 mi11:22:251:21:176:124:05
5:59
#1322
25K
15.53 mi11:37:061:35:586:1114:41
6:03
#1137
30K
18.64 mi11:55:571:54:496:1018:51
6:04
#896
20M
20.00 mi12:04:112:03:036:098:14
6:04
#787
21M
21.00 mi12:10:292:09:216:106:18
6:18
#713
35K
21.75 mi12:14:512:13:436:094:22
5:50
#683
23M
23.00 mi12:22:282:21:206:097:37
6:05
#609
24M
24.00 mi12:28:272:27:196:085:59
5:59
#560
40K
24.85 mi12:33:422:32:346:085:15
6:08
#523
25.2M
25.20 mi12:36:022:34:546:092:20
6:46
#518
Finish
26.22 mi12:42:052:40:576:096:03
5:56
#493
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1870180718071286(Top 5%)1247(Top 9%)1247(Top 26%)
10K6.21 mi3.10 mi1731+1391674+1331674+1331622(Top 6%)1571(Top 11%)1571(Top 32%)
15K9.32 mi3.11 mi1551+1801503+1711503+1711286(Top 5%)1247(Top 9%)1247(Top 26%)
20K12.43 mi3.11 mi1369+1821324+1791324+179996(Top 4%)960(Top 7%)960(Top 20%)
Half13.11 mi0.68 mi1322+471279+451279+45725(Top 3%)698(Top 5%)698(Top 14%)
25K15.53 mi2.42 mi1137+1851100+1791100+179567(Top 2%)538(Top 4%)538(Top 11%)
30K18.64 mi3.11 mi896+241863+237863+237308(Top 1%)285(Top 2%)285(Top 6%)
20M20.00 mi1.36 mi787+109754+109754+109257(Top 1%)233(Top 2%)233(Top 5%)
21M21.00 mi1.00 mi713+74683+71683+71215(Top 0.8%)195(Top 1%)195(Top 4%)
35K21.75 mi0.75 mi683+30653+30653+30235(Top 0.9%)213(Top 1%)213(Top 4%)
23M23.00 mi1.25 mi609+74580+73580+73238(Top 0.9%)216(Top 1%)216(Top 4%)
24M24.00 mi1.00 mi560+49531+49531+49258(Top 1%)235(Top 2%)235(Top 5%)
40K24.85 mi0.85 mi523+37494+37494+37289(Top 1%)265(Top 2%)265(Top 5%)
25.2M25.20 mi0.35 mi518+5489+5489+5323(Top 1%)297(Top 2%)297(Top 6%)
Finish26.22 mi1.02 mi493+25464+25464+25365(Top 1%)340(Top 2%)340(Top 7%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 5%
×21stories
+97ft-345ft

Overall

1286

Males

1247

M18-39

1247

5K→10K

3.1 - 6.2 mi

Top 6%
×5stories
+79ft-138ft

Overall

1622

Males

1571

M18-39

1571

10K→15K

6.2 - 9.3 mi

Top 5%
×3stories
+67ft-78ft

Overall

1286

Males

1247

M18-39

1247

15K→20K

9.3 - 12.4 mi

Top 4%
×5stories
+106ft-86ft

Overall

996

Males

960

M18-39

960

20K→Half

12.4 - 13.1 mi

Top 3%
×2stories
+19ft-37ft

Overall

725

Males

698

M18-39

698

Half→25K

13.1 - 15.5 mi

Top 2%
×4stories
+66ft-88ft

Overall

567

Males

538

M18-39

538

25K→30K

15.5 - 18.6 mi

Top 1%
×9stories
+181ft-148ft

Overall

308

Males

285

M18-39

285

30K→20M

18.6 - 20.0 mi

Top 1%
×5stories
+64ft-50ft

Overall

257

Males

233

M18-39

233

20M→21M

20.0 - 21.0 mi

Top 0.8%
×8stories
+106ft-24ft

Overall

215

Males

195

M18-39

195

21M→35K

21.0 - 21.8 mi

Top 0.9%
×7stories
+17ft-86ft

Overall

235

Males

213

M18-39

213

35K→23M

21.8 - 23.0 mi

Top 0.9%
×5stories
+23ft-63ft

Overall

238

Males

216

M18-39

216

23M→24M

23.0 - 24.0 mi

Top 1%
×6stories
+12ft-82ft

Overall

258

Males

235

M18-39

235

24M→40K

24.0 - 24.9 mi

Top 1%
×1story
+6ft-20ft

Overall

289

Males

265

M18-39

265

40K→25.2M

24.9 - 25.2 mi

Top 1%
×1story
+13ft-16ft

Overall

323

Males

297

M18-39

297

25.2M→Finish

25.2 - 26.2 mi

Top 1%
×2stories
+22ft-21ft

Overall

365

Males

340

M18-39

340

Passing Analysis

Category:
Athletes Passed
1438
Passed By
61
Net Change
+1377
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1870
5K → 10K18142+139#1870#1731
10K → 15K1855+180#1731#1551
15K → 20K1842+182#1551#1369
20K → Half470+47#1369#1322
Half → 25K1861+185#1322#1137
25K → 30K2410+241#1137#896
30K → 20M1101+109#896#787
20M → 21M740+74#787#713
21M → 35K311+30#713#683
35K → 23M740+74#683#609
23M → 24M512+49#609#560
24M → 40K381+37#560#523
40K → 25.2M72+5#523#518
25.2M → Finish294+25#518#493
TOTALS143861+1377
📊

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