Boston Marathon logo
BOSTON MARATHON 2023

Andy Biladeau

Bib: 4119•M

MN

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 6%
Gender (Male)
#0 / 15176
Top 10%
Division (M18-39)
#0 / 5285
Top 23%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:47
Rank: #3551
Start → 5K
20:47 | 6:41/mi
10K· 6.21 mi
41:09
Rank: #3316 (+235)
5K → 10K
20:22 | 6:33/mi
15K· 9.32 mi
1:01:27
Rank: #3138 (+178)
10K → 15K
20:18 | 6:32/mi
20K· 12.43 mi
1:21:47
Rank: #2935 (+203)
15K → 20K
20:20 | 6:33/mi
Half· 13.11 mi
1:26:11
Rank: #2903 (+32)
20K → Half
4:24 | 6:27/mi
25K· 15.53 mi
1:41:52
Rank: #2723 (+180)
Half → 25K
15:41 | 6:28/mi
30K· 18.64 mi
2:02:13
Rank: #2507 (+216)
25K → 30K
20:21 | 6:33/mi
20M
2:10:59
Rank: #2377 (+130)
30K → 20M
8:46 | 6:27/mi
21M
2:17:40
Rank: #2274 (+103)
20M → 21M
6:41 | 6:41/mi
35K· 21.75 mi
2:22:18
Rank: #2213 (+61)
21M → 35K
4:38 | 6:12/mi
23M
2:30:01
Rank: #2039 (+174)
35K → 23M
7:43 | 6:10/mi
24M
2:35:50
Rank: #1889 (+150)
23M → 24M
5:49 | 5:49/mi
40K· 24.85 mi
2:40:53
Rank: #1767 (+122)
24M → 40K
5:03 | 5:54/mi
25.2M
2:43:05
Rank: #1716 (+51)
40K → 25.2M
2:12 | 6:23/mi
Finish· 26.22 mi
2:48:46
Rank: #1574 (+142)
25.2M → Finish
5:41 | 5:35/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
Time1:26:11
Pace6:34 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:22:35
Pace6:18 /mi
📊Negative Split: 4.2% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:0420:476:4120:47
6:41
-
10K
6.21 mi10:43:2641:096:3720:22
6:33
-0:08
15K
9.32 mi11:03:441:01:276:3620:18
6:32
-0:01
20K
12.43 mi11:24:041:21:476:3520:20
6:33
+0:01
Half
13.11 mi11:28:281:26:116:344:24
6:27
-0:06
25K
15.53 mi11:44:091:41:526:3315:41
6:28
+0:01
30K
18.64 mi12:04:302:02:136:3320:21
6:33
+0:05
20M
20.00 mi12:13:162:10:596:338:46
6:27
-0:06
21M
21.00 mi12:19:572:17:406:336:41
6:41
+0:14
35K
21.75 mi12:24:352:22:186:334:38
6:12
-0:29
23M
23.00 mi12:32:182:30:016:317:43
6:10
-0:02
24M
24.00 mi12:38:072:35:506:305:49
5:49
-0:21
40K
24.85 mi12:43:102:40:536:285:03
5:54
+0:05
25.2M
25.20 mi12:45:222:43:056:282:12
6:23
+0:29
Finish
26.22 mi12:51:032:48:466:265:41
5:35
-0:48

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

5:35 /mi

Average Pace

6:26 /mi

Slowest Pace

6:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

16:33

10% of race

Time at Steady Pace

2:04:45

74% of race

Time at Slower Pace

27:28

16% of race

Average Pace: 6:26 /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 mi10:23:0420:476:4120:47
6:41
#3551
10K
6.21 mi10:43:2641:096:3720:22
6:33
#3316
15K
9.32 mi11:03:441:01:276:3620:18
6:32
#3138
20K
12.43 mi11:24:041:21:476:3520:20
6:33
#2935
Half
13.11 mi11:28:281:26:116:344:24
6:27
#2903
25K
15.53 mi11:44:091:41:526:3315:41
6:28
#2723
30K
18.64 mi12:04:302:02:136:3320:21
6:33
#2507
20M
20.00 mi12:13:162:10:596:338:46
6:27
#2377
21M
21.00 mi12:19:572:17:406:336:41
6:41
#2274
35K
21.75 mi12:24:352:22:186:334:38
6:12
#2213
23M
23.00 mi12:32:182:30:016:317:43
6:10
#2039
24M
24.00 mi12:38:072:35:506:305:49
5:49
#1889
40K
24.85 mi12:43:102:40:536:285:03
5:54
#1767
25.2M
25.20 mi12:45:222:43:056:282:12
6:23
#1716
Finish
26.22 mi12:51:032:48:466:265:41
5:35
#1574
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3551334433442836(Top 11%)2710(Top 18%)2710(Top 51%)
10K6.21 mi3.10 mi3316+2353140+2043140+2043149(Top 12%)3001(Top 20%)3001(Top 57%)
15K9.32 mi3.11 mi3138+1782988+1522988+1522836(Top 11%)2710(Top 18%)2710(Top 51%)
20K12.43 mi3.11 mi2935+2032805+1832805+1832530(Top 10%)2422(Top 16%)2422(Top 46%)
Half13.11 mi0.68 mi2903+322771+342771+342424(Top 9%)2323(Top 15%)2323(Top 44%)
25K15.53 mi2.42 mi2723+1802600+1712600+1712007(Top 8%)1922(Top 13%)1922(Top 36%)
30K18.64 mi3.11 mi2507+2162398+2022398+2021748(Top 7%)1672(Top 11%)1672(Top 32%)
20M20.00 mi1.36 mi2377+1302277+1212277+1211290(Top 5%)1229(Top 8%)1229(Top 23%)
21M21.00 mi1.00 mi2274+1032179+982179+981053(Top 4%)1004(Top 7%)1004(Top 19%)
35K21.75 mi0.75 mi2213+612120+592120+591232(Top 5%)1175(Top 8%)1175(Top 22%)
23M23.00 mi1.25 mi2039+1741955+1651955+165572(Top 2%)541(Top 4%)541(Top 10%)
24M24.00 mi1.00 mi1889+1501808+1471808+147288(Top 1%)264(Top 2%)264(Top 5%)
40K24.85 mi0.85 mi1767+1221689+1191689+119232(Top 0.9%)209(Top 1%)209(Top 4%)
25.2M25.20 mi0.35 mi1716+511640+491640+49355(Top 1%)334(Top 2%)334(Top 6%)
Finish26.22 mi1.02 mi1574+1421505+1351505+135139(Top 0.5%)125(Top 0.8%)125(Top 2%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 11%
×21stories
+97ft-345ft

Overall

2836

Males

2710

M18-39

2710

5K→10K

3.1 - 6.2 mi

Top 12%
×5stories
+79ft-138ft

Overall

3149

Males

3001

M18-39

3001

10K→15K

6.2 - 9.3 mi

Top 11%
×3stories
+67ft-78ft

Overall

2836

Males

2710

M18-39

2710

15K→20K

9.3 - 12.4 mi

Top 10%
×5stories
+106ft-86ft

Overall

2530

Males

2422

M18-39

2422

20K→Half

12.4 - 13.1 mi

Top 9%
×2stories
+19ft-37ft

Overall

2424

Males

2323

M18-39

2323

Half→25K

13.1 - 15.5 mi

Top 8%
×4stories
+66ft-88ft

Overall

2007

Males

1922

M18-39

1922

25K→30K

15.5 - 18.6 mi

Top 7%
×9stories
+181ft-148ft

Overall

1748

Males

1672

M18-39

1672

30K→20M

18.6 - 20.0 mi

Top 5%
×5stories
+64ft-50ft

Overall

1290

Males

1229

M18-39

1229

20M→21M

20.0 - 21.0 mi

Top 4%
×8stories
+106ft-24ft

Overall

1053

Males

1004

M18-39

1004

21M→35K

21.0 - 21.8 mi

Top 5%
×7stories
+17ft-86ft

Overall

1232

Males

1175

M18-39

1175

35K→23M

21.8 - 23.0 mi

Top 2%
×5stories
+23ft-63ft

Overall

572

Males

541

M18-39

541

23M→24M

23.0 - 24.0 mi

Top 1%
×6stories
+12ft-82ft

Overall

288

Males

264

M18-39

264

24M→40K

24.0 - 24.9 mi

Top 0.9%
×1story
+6ft-20ft

Overall

232

Males

209

M18-39

209

40K→25.2M

24.9 - 25.2 mi

Top 1%
×1story
+13ft-16ft

Overall

355

Males

334

M18-39

334

25.2M→Finish

25.2 - 26.2 mi

Top 0.5%
×2stories
+22ft-21ft

Overall

139

Males

125

M18-39

125

Passing Analysis

Category:
Athletes Passed
2123
Passed By
146
Net Change
+1977
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3551
5K → 10K32085+235#3551#3316
10K → 15K20426+178#3316#3138
15K → 20K22118+203#3138#2935
20K → Half364+32#2935#2903
Half → 25K1844+180#2903#2723
25K → 30K2226+216#2723#2507
30K → 20M1300+130#2507#2377
20M → 21M1041+103#2377#2274
21M → 35K632+61#2274#2213
35K → 23M1740+174#2213#2039
23M → 24M1500+150#2039#1889
24M → 40K1220+122#1889#1767
40K → 25.2M510+51#1767#1716
25.2M → Finish1420+142#1716#1574
TOTALS2123146+1977
📊

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