Boston Marathon logo
BOSTON MARATHON 2023

Austin Whitelaw

Bib: 480•M

CT

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 3%
Gender (Male)
#0 / 15176
Top 4%
Division (M18-39)
#0 / 5285
Top 11%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
17:44
Rank: #279
Start → 5K
17:44 | 5:42/mi
10K· 6.21 mi
35:06
Rank: #239 (+40)
5K → 10K
17:22 | 5:35/mi
15K· 9.32 mi
52:40
Rank: #217 (+22)
10K → 15K
17:34 | 5:39/mi
20K· 12.43 mi
1:10:32
Rank: #228 (-11)
15K → 20K
17:52 | 5:45/mi
Half· 13.11 mi
1:14:18
Rank: #220 (+8)
20K → Half
3:46 | 5:31/mi
25K· 15.53 mi
1:27:56
Rank: #197 (+23)
Half → 25K
13:38 | 5:37/mi
30K· 18.64 mi
1:45:45
Rank: #180 (+17)
25K → 30K
17:49 | 5:44/mi
20M
1:54:23
Rank: #191 (-11)
30K → 20M
8:38 | 6:21/mi
21M
2:03:05
Rank: #323 (-132)
20M → 21M
8:42 | 8:42/mi
35K· 21.75 mi
2:08:42
Rank: #400 (-77)
21M → 35K
5:37 | 7:30/mi
23M
2:18:11
Rank: #499 (-99)
35K → 23M
9:29 | 7:34/mi
24M
2:25:17
Rank: #578 (-79)
23M → 24M
7:06 | 7:06/mi
40K· 24.85 mi
2:31:23
Rank: #626 (-48)
24M → 40K
6:06 | 7:08/mi
25.2M
2:33:57
Rank: #642 (-16)
40K → 25.2M
2:34 | 7:27/mi
Finish· 26.22 mi
2:40:56
Rank: #698 (-56)
25.2M → Finish
6:59 | 6:51/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
Time1:14:18
Pace5:40 /mi
2nd Half
Distance13.11 mi
Time1:26:38
Pace6:37 /mi
📊Positive Split: 16.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:0717:445:4217:44
5:42
-
10K
6.21 mi10:35:2935:065:3917:22
5:35
-0:07
15K
9.32 mi10:53:0352:405:3917:34
5:39
+0:04
20K
12.43 mi11:10:551:10:325:4117:52
5:45
+0:06
Half
13.11 mi11:14:411:14:185:403:46
5:31
-0:14
25K
15.53 mi11:28:191:27:565:4013:38
5:37
+0:06
30K
18.64 mi11:46:081:45:455:4017:49
5:44
+0:07
20M
20.00 mi11:54:461:54:235:438:38
6:21
+0:37
21M
21.00 mi12:03:282:03:055:528:42
8:42
+2:21
35K
21.75 mi12:09:052:08:425:555:37
7:30
-1:12
23M
23.00 mi12:18:342:18:116:009:29
7:34
+0:04
24M
24.00 mi12:25:402:25:176:037:06
7:06
-0:28
40K
24.85 mi12:31:462:31:236:056:06
7:08
+0:02
25.2M
25.20 mi12:34:202:33:576:072:34
7:27
+0:19
Finish
26.22 mi12:41:192:40:566:096:59
6:51
-0:36

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

5:31 /mi

Average Pace

6:09 /mi

Slowest Pace

8:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:45:45

66% of race

Time at Steady Pace

8:38

5% of race

Time at Slower Pace

46:33

29% 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 mi10:18:0717:445:4217:44
5:42
#279
10K
6.21 mi10:35:2935:065:3917:22
5:35
#239
15K
9.32 mi10:53:0352:405:3917:34
5:39
#217
20K
12.43 mi11:10:551:10:325:4117:52
5:45
#228
Half
13.11 mi11:14:411:14:185:403:46
5:31
#220
25K
15.53 mi11:28:191:27:565:4013:38
5:37
#197
30K
18.64 mi11:46:081:45:455:4017:49
5:44
#180
20M
20.00 mi11:54:461:54:235:438:38
6:21
#191
21M
21.00 mi12:03:282:03:055:528:42
8:42
#323
35K
21.75 mi12:09:052:08:425:555:37
7:30
#400
23M
23.00 mi12:18:342:18:116:009:29
7:34
#499
24M
24.00 mi12:25:402:25:176:037:06
7:06
#578
40K
24.85 mi12:31:462:31:236:056:06
7:08
#626
25.2M
25.20 mi12:34:202:33:576:072:34
7:27
#642
Finish
26.22 mi12:41:192:40:566:096:59
6:51
#698
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi279279279192(Top 0.7%)165(Top 1%)165(Top 3%)
10K6.21 mi3.10 mi239+40212+67212+67196(Top 0.7%)169(Top 1%)169(Top 3%)
15K9.32 mi3.11 mi217+22190+22190+22192(Top 0.7%)165(Top 1%)165(Top 3%)
20K12.43 mi3.11 mi228-11201-11201-11239(Top 0.9%)213(Top 1%)213(Top 4%)
Half13.11 mi0.68 mi220+8194+7194+7140(Top 0.5%)121(Top 0.8%)121(Top 2%)
25K15.53 mi2.42 mi197+23172+22172+22130(Top 0.5%)111(Top 0.7%)111(Top 2%)
30K18.64 mi3.11 mi180+17158+14158+14125(Top 0.5%)106(Top 0.7%)106(Top 2%)
20M20.00 mi1.36 mi191-11168-10168-10995(Top 4%)951(Top 6%)951(Top 18%)
21M21.00 mi1.00 mi323-132292-124292-12411615(Top 44%)8382(Top 55%)8382(Top 159%)
35K21.75 mi0.75 mi400-77368-76368-768525(Top 32%)6799(Top 45%)6799(Top 129%)
23M23.00 mi1.25 mi499-99462-94462-946848(Top 26%)5713(Top 38%)5713(Top 108%)
24M24.00 mi1.00 mi578-79538-76538-765162(Top 19%)4535(Top 30%)4535(Top 86%)
40K24.85 mi0.85 mi626-48586-48586-484493(Top 17%)3975(Top 26%)3975(Top 75%)
25.2M25.20 mi0.35 mi642-16602-16602-163521(Top 13%)3149(Top 21%)3149(Top 60%)
Finish26.22 mi1.02 mi698-56656-54656-544322(Top 16%)3780(Top 25%)3780(Top 72%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 0.7%
×21stories
+97ft-345ft

Overall

192

Males

165

M18-39

165

5K→10K

3.1 - 6.2 mi

Top 0.7%
×5stories
+79ft-138ft

Overall

196

Males

169

M18-39

169

10K→15K

6.2 - 9.3 mi

Top 0.7%
×3stories
+67ft-78ft

Overall

192

Males

165

M18-39

165

15K→20K

9.3 - 12.4 mi

Top 0.9%
×5stories
+106ft-86ft

Overall

239

Males

213

M18-39

213

20K→Half

12.4 - 13.1 mi

Top 0.5%
×2stories
+19ft-37ft

Overall

140

Males

121

M18-39

121

Half→25K

13.1 - 15.5 mi

Top 0.5%
×4stories
+66ft-88ft

Overall

130

Males

111

M18-39

111

25K→30K

15.5 - 18.6 mi

Top 0.5%
×9stories
+181ft-148ft

Overall

125

Males

106

M18-39

106

30K→20M

18.6 - 20.0 mi

Top 4%
×5stories
+64ft-50ft

Overall

995

Males

951

M18-39

951

20M→21M

20.0 - 21.0 mi

Top 44%
×8stories
+106ft-24ft

Overall

11615

Males

8382

M18-39

8382

21M→35K

21.0 - 21.8 mi

Top 32%
×7stories
+17ft-86ft

Overall

8525

Males

6799

M18-39

6799

35K→23M

21.8 - 23.0 mi

Top 26%
×5stories
+23ft-63ft

Overall

6848

Males

5713

M18-39

5713

23M→24M

23.0 - 24.0 mi

Top 19%
×6stories
+12ft-82ft

Overall

5162

Males

4535

M18-39

4535

24M→40K

24.0 - 24.9 mi

Top 17%
×1story
+6ft-20ft

Overall

4493

Males

3975

M18-39

3975

40K→25.2M

24.9 - 25.2 mi

Top 13%
×1story
+13ft-16ft

Overall

3521

Males

3149

M18-39

3149

25.2M→Finish

25.2 - 26.2 mi

Top 16%
×2stories
+22ft-21ft

Overall

4322

Males

3780

M18-39

3780

Passing Analysis

Category:
Athletes Passed
154
Passed By
573
Net Change
-419
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#279
5K → 10K6828+40#279#239
10K → 15K220+22#239#217
15K → 20K415-11#217#228
20K → Half80+8#228#220
Half → 25K241+23#220#197
25K → 30K192+17#197#180
30K → 20M011-11#180#191
20M → 21M0132-132#191#323
21M → 35K077-77#323#400
35K → 23M2101-99#400#499
23M → 24M180-79#499#578
24M → 40K250-48#578#626
40K → 25.2M218-16#626#642
25.2M → Finish258-56#642#698
TOTALS154573-419
📊

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