Boston Marathon logo
BOSTON MARATHON 2023

Claudio Loja

Bib: 7483•M

IL

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 16%
Gender (Male)
#0 / 15176
Top 26%
Masters (Masters Men)
#0 / 9891
Top 12%
Division (M40-44)
#0 / 2241
Top 30%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:29
Rank: #2824
Start → 5K
20:29 | 6:36/mi
10K· 6.21 mi
40:27
Rank: #2573 (+251)
5K → 10K
19:58 | 6:26/mi
15K· 9.32 mi
1:00:16
Rank: #2366 (+207)
10K → 15K
19:49 | 6:23/mi
20K· 12.43 mi
1:20:28
Rank: #2326 (+40)
15K → 20K
20:12 | 6:30/mi
Half· 13.11 mi
1:24:47
Rank: #2296 (+30)
20K → Half
4:19 | 6:20/mi
25K· 15.53 mi
1:40:42
Rank: #2322 (-26)
Half → 25K
15:55 | 6:34/mi
30K· 18.64 mi
2:01:43
Rank: #2377 (-55)
25K → 30K
21:01 | 6:46/mi
20M
2:11:01
Rank: #2388 (-11)
30K → 20M
9:18 | 6:51/mi
21M
2:18:35
Rank: #2484 (-96)
20M → 21M
7:34 | 7:34/mi
35K· 21.75 mi
2:23:41
Rank: #2511 (-27)
21M → 35K
5:06 | 6:49/mi
23M
2:33:21
Rank: #2771 (-260)
35K → 23M
9:40 | 7:43/mi
24M
2:41:17
Rank: #3118 (-347)
23M → 24M
7:56 | 7:56/mi
40K· 24.85 mi
2:48:34
Rank: #3504 (-386)
24M → 40K
7:17 | 8:31/mi
25.2M
2:51:38
Rank: #3665 (-161)
40K → 25.2M
3:04 | 8:54/mi
Finish· 26.22 mi
2:59:51
Rank: #4149 (-484)
25.2M → Finish
8:13 | 8:04/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
Time1:24:47
Pace6:28 /mi
2nd Half
Distance13.11 mi
Time1:35:04
Pace7:15 /mi
📊Positive Split: 12.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:4620:296:3620:29
6:36
-
10K
6.21 mi10:44:4440:276:3119:58
6:26
-0:10
15K
9.32 mi11:04:331:00:166:2819:49
6:23
-0:03
20K
12.43 mi11:24:451:20:286:2820:12
6:30
+0:07
Half
13.11 mi11:29:041:24:476:284:19
6:20
-0:10
25K
15.53 mi11:44:591:40:426:2915:55
6:34
+0:14
30K
18.64 mi12:06:002:01:436:3221:01
6:46
+0:12
20M
20.00 mi12:15:182:11:016:339:18
6:51
+0:05
21M
21.00 mi12:22:522:18:356:367:34
7:34
+0:43
35K
21.75 mi12:27:582:23:416:365:06
6:49
-0:45
23M
23.00 mi12:37:382:33:216:409:40
7:43
+0:54
24M
24.00 mi12:45:342:41:176:437:56
7:56
+0:13
40K
24.85 mi12:52:512:48:346:477:17
8:31
+0:35
25.2M
25.20 mi12:55:552:51:386:493:04
8:54
+0:23
Finish
26.22 mi13:04:082:59:516:528:13
8:04
-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

6:20 /mi

Average Pace

6:52 /mi

Slowest Pace

8:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

24:08

13% of race

Time at Steady Pace

1:51:59

62% of race

Time at Slower Pace

43:44

24% of race

Average Pace: 6:52 /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 mi10:24:4620:296:3620:29
6:36
#2824
10K
6.21 mi10:44:4440:276:3119:58
6:26
#2573
15K
9.32 mi11:04:331:00:166:2819:49
6:23
#2366
20K
12.43 mi11:24:451:20:286:2820:12
6:30
#2326
Half
13.11 mi11:29:041:24:476:284:19
6:20
#2296
25K
15.53 mi11:44:591:40:426:2915:55
6:34
#2322
30K
18.64 mi12:06:002:01:436:3221:01
6:46
#2377
20M
20.00 mi12:15:182:11:016:339:18
6:51
#2388
21M
21.00 mi12:22:522:18:356:367:34
7:34
#2484
35K
21.75 mi12:27:582:23:416:365:06
6:49
#2511
23M
23.00 mi12:37:382:33:216:409:40
7:43
#2771
24M
24.00 mi12:45:342:41:176:437:56
7:56
#3118
40K
24.85 mi12:52:512:48:346:477:17
8:31
#3504
25.2M
25.20 mi12:55:552:51:386:493:04
8:54
#3665
Finish
26.22 mi13:04:082:59:516:528:13
8:04
#4149
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi2824268726871998(Top 8%)1913(Top 13%)1913(Top 85%)
10K6.21 mi3.10 mi2573+2512454+2332454+2332383(Top 9%)2283(Top 15%)2283(Top 102%)
15K9.32 mi3.11 mi2366+2072265+1892265+1891998(Top 8%)1913(Top 13%)1913(Top 85%)
20K12.43 mi3.11 mi2326+402230+352230+352305(Top 9%)2210(Top 15%)2210(Top 99%)
Half13.11 mi0.68 mi2296+302200+302200+301932(Top 7%)1857(Top 12%)1857(Top 83%)
25K15.53 mi2.42 mi2322-262227-272227-272523(Top 9%)2414(Top 16%)2414(Top 108%)
30K18.64 mi3.11 mi2377-552278-512278-512781(Top 10%)2639(Top 17%)2639(Top 118%)
20M20.00 mi1.36 mi2388-112287-92287-93099(Top 12%)2913(Top 19%)2913(Top 130%)
21M21.00 mi1.00 mi2484-962379-922379-924886(Top 18%)4389(Top 29%)4389(Top 196%)
35K21.75 mi0.75 mi2511-272403-242403-244283(Top 16%)3918(Top 26%)3918(Top 175%)
23M23.00 mi1.25 mi2771-2602644-2412644-2417822(Top 29%)6306(Top 42%)6306(Top 281%)
24M24.00 mi1.00 mi3118-3472956-3122956-31210723(Top 40%)7746(Top 51%)7746(Top 346%)
40K24.85 mi0.85 mi3504-3863310-3543310-35413415(Top 50%)8954(Top 59%)8954(Top 400%)
25.2M25.20 mi0.35 mi3665-1613448-1383448-13811753(Top 44%)8096(Top 53%)8096(Top 361%)
Finish26.22 mi1.02 mi4149-4843881-4333881-43312504(Top 47%)8511(Top 56%)8511(Top 380%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 8%
×21stories
+97ft-345ft

Overall

1998

Males

1913

M40-44

1913

5K→10K

3.1 - 6.2 mi

Top 9%
×5stories
+79ft-138ft

Overall

2383

Males

2283

M40-44

2283

10K→15K

6.2 - 9.3 mi

Top 8%
×3stories
+67ft-78ft

Overall

1998

Males

1913

M40-44

1913

15K→20K

9.3 - 12.4 mi

Top 9%
×5stories
+106ft-86ft

Overall

2305

Males

2210

M40-44

2210

20K→Half

12.4 - 13.1 mi

Top 7%
×2stories
+19ft-37ft

Overall

1932

Males

1857

M40-44

1857

Half→25K

13.1 - 15.5 mi

Top 9%
×4stories
+66ft-88ft

Overall

2523

Males

2414

M40-44

2414

25K→30K

15.5 - 18.6 mi

Top 10%
×9stories
+181ft-148ft

Overall

2781

Males

2639

M40-44

2639

30K→20M

18.6 - 20.0 mi

Top 12%
×5stories
+64ft-50ft

Overall

3099

Males

2913

M40-44

2913

20M→21M

20.0 - 21.0 mi

Top 18%
×8stories
+106ft-24ft

Overall

4886

Males

4389

M40-44

4389

21M→35K

21.0 - 21.8 mi

Top 16%
×7stories
+17ft-86ft

Overall

4283

Males

3918

M40-44

3918

35K→23M

21.8 - 23.0 mi

Top 29%
×5stories
+23ft-63ft

Overall

7822

Males

6306

M40-44

6306

23M→24M

23.0 - 24.0 mi

Top 40%
×6stories
+12ft-82ft

Overall

10723

Males

7746

M40-44

7746

24M→40K

24.0 - 24.9 mi

Top 50%
×1story
+6ft-20ft

Overall

13415

Males

8954

M40-44

8954

40K→25.2M

24.9 - 25.2 mi

Top 44%
×1story
+13ft-16ft

Overall

11753

Males

8096

M40-44

8096

25.2M→Finish

25.2 - 26.2 mi

Top 47%
×2stories
+22ft-21ft

Overall

12504

Males

8511

M40-44

8511

Passing Analysis

Category:
Athletes Passed
810
Passed By
2135
Net Change
-1325
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2824
5K → 10K31463+251#2824#2573
10K → 15K22316+207#2573#2366
15K → 20K8040+40#2366#2326
20K → Half322+30#2326#2296
Half → 25K3864-26#2296#2322
25K → 30K48103-55#2322#2377
30K → 20M3142-11#2377#2388
20M → 21M11107-96#2388#2484
21M → 35K1643-27#2484#2511
35K → 23M9269-260#2511#2771
23M → 24M2349-347#2771#3118
24M → 40K2388-386#3118#3504
40K → 25.2M3164-161#3504#3665
25.2M → Finish1485-484#3665#4149
TOTALS8102135-1325
📊

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