Boston Marathon logo
BOSTON MARATHON 2023

Pierre-Jean Crastes

Bib: 1730•M

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 5%
Gender (Male)
#0 / 15176
Top 8%
Masters (Masters Men)
#0 / 9891
Top 2%
Division (M40-44)
#0 / 2241
Top 6%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:25
Rank: #1267
Start → 5K
19:25 | 6:15/mi
10K· 6.21 mi
38:50
Rank: #1378 (-111)
5K → 10K
19:25 | 6:15/mi
15K· 9.32 mi
58:34
Rank: #1516 (-138)
10K → 15K
19:44 | 6:21/mi
20K· 12.43 mi
1:18:30
Rank: #1597 (-81)
15K → 20K
19:56 | 6:25/mi
Half· 13.11 mi
1:22:51
Rank: #1624 (-27)
20K → Half
4:21 | 6:23/mi
25K· 15.53 mi
1:38:23
Rank: #1624
Half → 25K
15:32 | 6:24/mi
30K· 18.64 mi
1:58:33
Rank: #1593 (+31)
25K → 30K
20:10 | 6:29/mi
20M
2:07:22
Rank: #1558 (+35)
30K → 20M
8:49 | 6:29/mi
21M
2:14:05
Rank: #1516 (+42)
20M → 21M
6:43 | 6:43/mi
35K· 21.75 mi
2:18:52
Rank: #1515 (+1)
21M → 35K
4:47 | 6:23/mi
23M
2:26:51
Rank: #1467 (+48)
35K → 23M
7:59 | 6:23/mi
24M
2:33:07
Rank: #1428 (+39)
23M → 24M
6:16 | 6:16/mi
40K· 24.85 mi
2:38:32
Rank: #1396 (+32)
24M → 40K
5:25 | 6:20/mi
25.2M
2:40:51
Rank: #1385 (+11)
40K → 25.2M
2:19 | 6:43/mi
Finish· 26.22 mi
2:46:59
Rank: #1322 (+63)
25.2M → Finish
6:08 | 6:01/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
Time1:22:51
Pace6:19 /mi
2nd Half
Distance13.11 mi
Time1:24:08
Pace6:25 /mi
📊Positive Split: 1.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:5819:256:1519:25
6:15
-
10K
6.21 mi10:39:2338:506:1519:25
6:15
0:00
15K
9.32 mi10:59:0758:346:1719:44
6:21
+0:06
20K
12.43 mi11:19:031:18:306:1919:56
6:25
+0:04
Half
13.11 mi11:23:241:22:516:194:21
6:23
-0:02
25K
15.53 mi11:38:561:38:236:2015:32
6:24
+0:01
30K
18.64 mi11:59:061:58:336:2220:10
6:29
+0:05
20M
20.00 mi12:07:552:07:226:228:49
6:29
0:00
21M
21.00 mi12:14:382:14:056:236:43
6:43
+0:14
35K
21.75 mi12:19:252:18:526:234:47
6:23
-0:20
23M
23.00 mi12:27:242:26:516:237:59
6:23
0:00
24M
24.00 mi12:33:402:33:076:236:16
6:16
-0:07
40K
24.85 mi12:39:052:38:326:235:25
6:20
+0:04
25.2M
25.20 mi12:41:242:40:516:232:19
6:43
+0:23
Finish
26.22 mi12:47:322:46:596:226:08
6:01
-0:42

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

6:01 /mi

Average Pace

6:22 /mi

Slowest Pace

6:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:37:57

95% of race

Time at Steady Pace

9:02

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:22 /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 mi10:19:5819:256:1519:25
6:15
#1267
10K
6.21 mi10:39:2338:506:1519:25
6:15
#1378
15K
9.32 mi10:59:0758:346:1719:44
6:21
#1516
20K
12.43 mi11:19:031:18:306:1919:56
6:25
#1597
Half
13.11 mi11:23:241:22:516:194:21
6:23
#1624
25K
15.53 mi11:38:561:38:236:2015:32
6:24
#1624
30K
18.64 mi11:59:061:58:336:2220:10
6:29
#1593
20M
20.00 mi12:07:552:07:226:228:49
6:29
#1558
21M
21.00 mi12:14:382:14:056:236:43
6:43
#1516
35K
21.75 mi12:19:252:18:526:234:47
6:23
#1515
23M
23.00 mi12:27:242:26:516:237:59
6:23
#1467
24M
24.00 mi12:33:402:33:076:236:16
6:16
#1428
40K
24.85 mi12:39:052:38:326:235:25
6:20
#1396
25.2M
25.20 mi12:41:242:40:516:232:19
6:43
#1385
Finish
26.22 mi12:47:322:46:596:226:08
6:01
#1322
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi1267120112011886(Top 7%)1806(Top 12%)1806(Top 81%)
10K6.21 mi3.10 mi1378-1111312-1111312-1111567(Top 6%)1497(Top 10%)1497(Top 67%)
15K9.32 mi3.11 mi1516-1381446-1341446-1341886(Top 7%)1806(Top 12%)1806(Top 81%)
20K12.43 mi3.11 mi1597-811526-801526-801872(Top 7%)1795(Top 12%)1795(Top 80%)
Half13.11 mi0.68 mi1624-271553-271553-272168(Top 8%)2078(Top 14%)2078(Top 93%)
25K15.53 mi2.42 mi16241554-11554-11756(Top 7%)1680(Top 11%)1680(Top 75%)
30K18.64 mi3.11 mi1593+311524+301524+301529(Top 6%)1464(Top 10%)1464(Top 65%)
20M20.00 mi1.36 mi1558+351488+361488+361427(Top 5%)1358(Top 9%)1358(Top 61%)
21M21.00 mi1.00 mi1516+421448+401448+401165(Top 4%)1107(Top 7%)1107(Top 49%)
35K21.75 mi0.75 mi1515+1144814481900(Top 7%)1804(Top 12%)1804(Top 80%)
23M23.00 mi1.25 mi1467+481401+471401+471054(Top 4%)999(Top 7%)999(Top 45%)
24M24.00 mi1.00 mi1428+391362+391362+391286(Top 5%)1216(Top 8%)1216(Top 54%)
40K24.85 mi0.85 mi1396+321331+311331+311032(Top 4%)975(Top 6%)975(Top 44%)
25.2M25.20 mi0.35 mi1385+111320+111320+11991(Top 4%)938(Top 6%)938(Top 42%)
Finish26.22 mi1.02 mi1322+631258+621258+62798(Top 3%)764(Top 5%)764(Top 34%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 7%
×21stories
+97ft-345ft

Overall

1886

Males

1806

M40-44

1806

5K→10K

3.1 - 6.2 mi

Top 6%
×5stories
+79ft-138ft

Overall

1567

Males

1497

M40-44

1497

10K→15K

6.2 - 9.3 mi

Top 7%
×3stories
+67ft-78ft

Overall

1886

Males

1806

M40-44

1806

15K→20K

9.3 - 12.4 mi

Top 7%
×5stories
+106ft-86ft

Overall

1872

Males

1795

M40-44

1795

20K→Half

12.4 - 13.1 mi

Top 8%
×2stories
+19ft-37ft

Overall

2168

Males

2078

M40-44

2078

Half→25K

13.1 - 15.5 mi

Top 7%
×4stories
+66ft-88ft

Overall

1756

Males

1680

M40-44

1680

25K→30K

15.5 - 18.6 mi

Top 6%
×9stories
+181ft-148ft

Overall

1529

Males

1464

M40-44

1464

30K→20M

18.6 - 20.0 mi

Top 5%
×5stories
+64ft-50ft

Overall

1427

Males

1358

M40-44

1358

20M→21M

20.0 - 21.0 mi

Top 4%
×8stories
+106ft-24ft

Overall

1165

Males

1107

M40-44

1107

21M→35K

21.0 - 21.8 mi

Top 7%
×7stories
+17ft-86ft

Overall

1900

Males

1804

M40-44

1804

35K→23M

21.8 - 23.0 mi

Top 4%
×5stories
+23ft-63ft

Overall

1054

Males

999

M40-44

999

23M→24M

23.0 - 24.0 mi

Top 5%
×6stories
+12ft-82ft

Overall

1286

Males

1216

M40-44

1216

24M→40K

24.0 - 24.9 mi

Top 4%
×1story
+6ft-20ft

Overall

1032

Males

975

M40-44

975

40K→25.2M

24.9 - 25.2 mi

Top 4%
×1story
+13ft-16ft

Overall

991

Males

938

M40-44

938

25.2M→Finish

25.2 - 26.2 mi

Top 3%
×2stories
+22ft-21ft

Overall

798

Males

764

M40-44

764

Passing Analysis

Category:
Athletes Passed
510
Passed By
565
Net Change
-55
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1267
5K → 10K38149-111#1267#1378
10K → 15K17155-138#1378#1516
15K → 20K1899-81#1516#1597
20K → Half734-27#1597#1624
Half → 25K36360#1624#1624
25K → 30K7140+31#1624#1593
30K → 20M4611+35#1593#1558
20M → 21M464+42#1558#1516
21M → 35K1615+1#1516#1515
35K → 23M513+48#1515#1467
23M → 24M456+39#1467#1428
24M → 40K397+32#1428#1396
40K → 25.2M154+11#1396#1385
25.2M → Finish652+63#1385#1322
TOTALS510565-55
📊

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