Boston Marathon logo
BOSTON MARATHON 2024

Jack Spaulding

Bib: 1647•M

MA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 25550
Top 0.7%
Gender (Male)
#0 / 14578
Top 1%
Division (M18-39)
#0 / 4849
Top 3%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
17:56
Rank: #464
Start → 5K
17:56 | 5:46/mi
10K· 6.21 mi
35:34
Rank: #371 (+93)
5K → 10K
17:38 | 5:41/mi
15K· 9.32 mi
53:11
Rank: #310 (+61)
10K → 15K
17:37 | 5:40/mi
20K· 12.43 mi
1:11:03
Rank: #271 (+39)
15K → 20K
17:52 | 5:45/mi
Half· 13.11 mi
1:14:55
Rank: #266 (+5)
20K → Half
3:52 | 5:40/mi
25K· 15.53 mi
1:28:53
Rank: #253 (+13)
Half → 25K
13:58 | 5:46/mi
30K· 18.64 mi
1:47:08
Rank: #220 (+33)
25K → 30K
18:15 | 5:52/mi
20M
1:55:14
Rank: #206 (+14)
30K → 20M
8:06 | 5:58/mi
21M
2:01:32
Rank: #199 (+7)
20M → 21M
6:18 | 6:18/mi
35K· 21.75 mi
2:05:53
Rank: #196 (+3)
21M → 35K
4:21 | 5:49/mi
23M
2:13:14
Rank: #179 (+17)
35K → 23M
7:21 | 5:52/mi
24M
2:19:04
Rank: #177 (+2)
23M → 24M
5:50 | 5:50/mi
40K· 24.85 mi
2:24:17
Rank: #173 (+4)
24M → 40K
5:13 | 6:06/mi
25.2M
2:26:30
Rank: #169 (+4)
40K → 25.2M
2:13 | 6:26/mi
Finish· 26.22 mi
2:32:35
Rank: #172 (-3)
25.2M → Finish
6:05 | 5:58/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
Time1:14:55
Pace5:43 /mi
2nd Half
Distance13.11 mi
Time1:17:40
Pace5:55 /mi
📊Positive Split: 3.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:1517:565:4617:56
5:46
-
10K
6.21 mi10:35:5335:345:4317:38
5:41
-0:05
15K
9.32 mi10:53:3053:115:4217:37
5:40
-0:01
20K
12.43 mi11:11:221:11:035:4317:52
5:45
+0:05
Half
13.11 mi11:15:141:14:555:433:52
5:40
-0:05
25K
15.53 mi11:29:121:28:535:4313:58
5:46
+0:06
30K
18.64 mi11:47:271:47:085:4518:15
5:52
+0:06
20M
20.00 mi11:55:331:55:145:468:06
5:58
+0:06
21M
21.00 mi12:01:512:01:325:476:18
6:18
+0:20
35K
21.75 mi12:06:122:05:535:474:21
5:49
-0:29
23M
23.00 mi12:13:332:13:145:487:21
5:52
+0:03
24M
24.00 mi12:19:232:19:045:485:50
5:50
-0:02
40K
24.85 mi12:24:362:24:175:485:13
6:06
+0:16
25.2M
25.20 mi12:26:492:26:305:492:13
6:26
+0:20
Finish
26.22 mi12:32:542:32:355:496:05
5:58
-0:28

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

5:40 /mi

Average Pace

5:49 /mi

Slowest Pace

6:26 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:24:04

94% of race

Time at Steady Pace

8:31

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 5:49 /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 mi10:18:1517:565:4617:56
5:46
#464
10K
6.21 mi10:35:5335:345:4317:38
5:41
#371
15K
9.32 mi10:53:3053:115:4217:37
5:40
#310
20K
12.43 mi11:11:221:11:035:4317:52
5:45
#271
Half
13.11 mi11:15:141:14:555:433:52
5:40
#266
25K
15.53 mi11:29:121:28:535:4313:58
5:46
#253
30K
18.64 mi11:47:271:47:085:4518:15
5:52
#220
20M
20.00 mi11:55:331:55:145:468:06
5:58
#206
21M
21.00 mi12:01:512:01:325:476:18
6:18
#199
35K
21.75 mi12:06:122:05:535:474:21
5:49
#196
23M
23.00 mi12:13:332:13:145:487:21
5:52
#179
24M
24.00 mi12:19:232:19:045:485:50
5:50
#177
40K
24.85 mi12:24:362:24:175:485:13
6:06
#173
25.2M
25.20 mi12:26:492:26:305:492:13
6:26
#169
Finish
26.22 mi12:32:542:32:355:496:05
5:58
#172
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi464442442231(Top 0.9%)210(Top 1%)210(Top 4%)
10K6.21 mi3.10 mi371+93349+93349+93282(Top 1%)261(Top 2%)261(Top 5%)
15K9.32 mi3.11 mi310+61289+60289+60231(Top 0.9%)210(Top 1%)210(Top 4%)
20K12.43 mi3.11 mi271+39250+39250+39234(Top 0.9%)214(Top 1%)214(Top 4%)
Half13.11 mi0.68 mi266+5245+5245+5220(Top 0.9%)203(Top 1%)203(Top 4%)
25K15.53 mi2.42 mi253+13232+13232+13195(Top 0.8%)176(Top 1%)176(Top 4%)
30K18.64 mi3.11 mi220+33199+33199+33161(Top 0.6%)142(Top 1.0%)142(Top 3%)
20M20.00 mi1.36 mi206+14185+14185+14184(Top 0.7%)163(Top 1%)163(Top 3%)
21M21.00 mi1.00 mi199+7178+7178+7210(Top 0.8%)190(Top 1%)190(Top 4%)
35K21.75 mi0.75 mi196+3175+3175+3208(Top 0.8%)186(Top 1%)186(Top 4%)
23M23.00 mi1.25 mi179+17158+17158+17121(Top 0.5%)105(Top 0.7%)105(Top 2%)
24M24.00 mi1.00 mi177+2156+2156+2164(Top 0.6%)146(Top 1%)146(Top 3%)
40K24.85 mi0.85 mi173+4152+4152+4252(Top 1.0%)228(Top 2%)228(Top 5%)
25.2M25.20 mi0.35 mi169+4148+4148+4140(Top 0.5%)125(Top 0.9%)125(Top 3%)
Finish26.22 mi1.02 mi172-3150-2150-2389(Top 2%)362(Top 2%)362(Top 7%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 0.9%
×21stories
+97ft-345ft

Overall

231

Males

210

M18-39

210

5K→10K

3.1 - 6.2 mi

Top 1%
×5stories
+79ft-138ft

Overall

282

Males

261

M18-39

261

10K→15K

6.2 - 9.3 mi

Top 0.9%
×3stories
+67ft-78ft

Overall

231

Males

210

M18-39

210

15K→20K

9.3 - 12.4 mi

Top 0.9%
×5stories
+106ft-86ft

Overall

234

Males

214

M18-39

214

20K→Half

12.4 - 13.1 mi

Top 0.9%
×2stories
+19ft-37ft

Overall

220

Males

203

M18-39

203

Half→25K

13.1 - 15.5 mi

Top 0.8%
×4stories
+66ft-88ft

Overall

195

Males

176

M18-39

176

25K→30K

15.5 - 18.6 mi

Top 0.6%
×9stories
+181ft-148ft

Overall

161

Males

142

M18-39

142

30K→20M

18.6 - 20.0 mi

Top 0.7%
×5stories
+64ft-50ft

Overall

184

Males

163

M18-39

163

20M→21M

20.0 - 21.0 mi

Top 0.8%
×8stories
+106ft-24ft

Overall

210

Males

190

M18-39

190

21M→35K

21.0 - 21.8 mi

Top 0.8%
×7stories
+17ft-86ft

Overall

208

Males

186

M18-39

186

35K→23M

21.8 - 23.0 mi

Top 0.5%
×5stories
+23ft-63ft

Overall

121

Males

105

M18-39

105

23M→24M

23.0 - 24.0 mi

Top 0.6%
×6stories
+12ft-82ft

Overall

164

Males

146

M18-39

146

24M→40K

24.0 - 24.9 mi

Top 1.0%
×1story
+6ft-20ft

Overall

252

Males

228

M18-39

228

40K→25.2M

24.9 - 25.2 mi

Top 0.5%
×1story
+13ft-16ft

Overall

140

Males

125

M18-39

125

25.2M→Finish

25.2 - 26.2 mi

Top 2%
×2stories
+22ft-21ft

Overall

389

Males

362

M18-39

362

Passing Analysis

Category:
Athletes Passed
314
Passed By
22
Net Change
+292
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#464
5K → 10K941+93#464#371
10K → 15K610+61#371#310
15K → 20K401+39#310#271
20K → Half61+5#271#266
Half → 25K152+13#266#253
25K → 30K363+33#253#220
30K → 20M140+14#220#206
20M → 21M103+7#206#199
21M → 35K63+3#199#196
35K → 23M181+17#196#179
23M → 24M20+2#179#177
24M → 40K40+4#177#173
40K → 25.2M51+4#173#169
25.2M → Finish36-3#169#172
TOTALS31422+292
📊

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