Boston Marathon logo
BOSTON MARATHON 2024

Juan Blasco

Bib: 7069•M

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 25550
Top 22%
Gender (Male)
#0 / 14578
Top 32%
Masters (Masters Men)
#0 / 9729
Top 21%
Division (M50-54)
#0 / 1935
Top 17%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:34
Rank: #6660
Start → 5K
21:34 | 6:56/mi
10K· 6.21 mi
43:17
Rank: #6608 (+52)
5K → 10K
21:43 | 6:59/mi
15K· 9.32 mi
1:05:06
Rank: #6502 (+106)
10K → 15K
21:49 | 7:01/mi
20K· 12.43 mi
1:27:14
Rank: #6291 (+211)
15K → 20K
22:08 | 7:07/mi
Half· 13.11 mi
1:32:01
Rank: #6256 (+35)
20K → Half
4:47 | 7:01/mi
25K· 15.53 mi
1:49:42
Rank: #6109 (+147)
Half → 25K
17:41 | 7:18/mi
30K· 18.64 mi
2:13:24
Rank: #5896 (+213)
25K → 30K
23:42 | 7:38/mi
20M
2:24:03
Rank: #5825 (+71)
30K → 20M
10:39 | 7:50/mi
21M
2:32:34
Rank: #5761 (+64)
20M → 21M
8:31 | 8:31/mi
35K· 21.75 mi
2:38:12
Rank: #5681 (+80)
21M → 35K
5:38 | 7:32/mi
23M
2:47:55
Rank: #5514 (+167)
35K → 23M
9:43 | 7:46/mi
24M
2:55:44
Rank: #5445 (+69)
23M → 24M
7:49 | 7:49/mi
40K· 24.85 mi
3:02:48
Rank: #5445
24M → 40K
7:04 | 8:16/mi
25.2M
3:05:56
Rank: #5441 (+4)
40K → 25.2M
3:08 | 9:05/mi
Finish· 26.22 mi
3:14:11
Rank: #5501 (-60)
25.2M → Finish
8:15 | 8:06/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
Time1:32:01
Pace7:01 /mi
2nd Half
Distance13.11 mi
Time1:42:10
Pace7:48 /mi
📊Positive Split: 11.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:28:2421:346:5621:34
6:56
-
10K
6.21 mi10:50:0743:176:5821:43
6:59
+0:03
15K
9.32 mi11:11:561:05:066:5921:49
7:01
+0:02
20K
12.43 mi11:34:041:27:147:0122:08
7:07
+0:06
Half
13.11 mi11:38:511:32:017:014:47
7:01
-0:06
25K
15.53 mi11:56:321:49:427:0417:41
7:18
+0:17
30K
18.64 mi12:20:142:13:247:0923:42
7:38
+0:20
20M
20.00 mi12:30:532:24:037:1210:39
7:50
+0:12
21M
21.00 mi12:39:242:32:347:168:31
8:31
+0:41
35K
21.75 mi12:45:022:38:127:165:38
7:32
-0:59
23M
23.00 mi12:54:452:47:557:189:43
7:46
+0:14
24M
24.00 mi13:02:342:55:447:197:49
7:49
+0:03
40K
24.85 mi13:09:383:02:487:217:04
8:16
+0:27
25.2M
25.20 mi13:12:463:05:567:233:08
9:05
+0:49
Finish
26.22 mi13:21:013:14:117:258:15
8:06
-0:59

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

6:56 /mi

Average Pace

7:25 /mi

Slowest Pace

9:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:49:42

56% of race

Time at Steady Pace

57:31

30% of race

Time at Slower Pace

26:58

14% of race

Average Pace: 7:24 /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 mi10:28:2421:346:5621:34
6:56
#6660
10K
6.21 mi10:50:0743:176:5821:43
6:59
#6608
15K
9.32 mi11:11:561:05:066:5921:49
7:01
#6502
20K
12.43 mi11:34:041:27:147:0122:08
7:07
#6291
Half
13.11 mi11:38:511:32:017:014:47
7:01
#6256
25K
15.53 mi11:56:321:49:427:0417:41
7:18
#6109
30K
18.64 mi12:20:142:13:247:0923:42
7:38
#5896
20M
20.00 mi12:30:532:24:037:1210:39
7:50
#5825
21M
21.00 mi12:39:242:32:347:168:31
8:31
#5761
35K
21.75 mi12:45:022:38:127:165:38
7:32
#5681
23M
23.00 mi12:54:452:47:557:189:43
7:46
#5514
24M
24.00 mi13:02:342:55:447:197:49
7:49
#5445
40K
24.85 mi13:09:383:02:487:217:04
8:16
#5445
25.2M
25.20 mi13:12:463:05:567:233:08
9:05
#5441
Finish
26.22 mi13:21:013:14:117:258:15
8:06
#5501
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi6660592159216342(Top 25%)5628(Top 39%)5628(Top 291%)
10K6.21 mi3.10 mi6608+525870+515870+516590(Top 26%)5829(Top 40%)5829(Top 301%)
15K9.32 mi3.11 mi6502+1065775+955775+956342(Top 25%)5628(Top 39%)5628(Top 291%)
20K12.43 mi3.11 mi6291+2115601+1745601+1745947(Top 23%)5283(Top 36%)5283(Top 273%)
Half13.11 mi0.68 mi6256+355573+285573+285793(Top 23%)5178(Top 36%)5178(Top 268%)
25K15.53 mi2.42 mi6109+1475436+1375436+1375782(Top 23%)5040(Top 35%)5040(Top 260%)
30K18.64 mi3.11 mi5896+2135212+2245212+2245748(Top 22%)4837(Top 33%)4837(Top 250%)
20M20.00 mi1.36 mi5825+715134+785134+785875(Top 23%)4777(Top 33%)4777(Top 247%)
21M21.00 mi1.00 mi5761+645064+705064+706271(Top 25%)4838(Top 33%)4838(Top 250%)
35K21.75 mi0.75 mi5681+804983+814983+815184(Top 20%)4209(Top 29%)4209(Top 218%)
23M23.00 mi1.25 mi5514+1674831+1524831+1524625(Top 18%)3765(Top 26%)3765(Top 195%)
24M24.00 mi1.00 mi5445+694751+804751+805627(Top 22%)4248(Top 29%)4248(Top 220%)
40K24.85 mi0.85 mi54454724+274724+277116(Top 28%)4917(Top 34%)4917(Top 254%)
25.2M25.20 mi0.35 mi5441+44712+124712+126865(Top 27%)4731(Top 32%)4731(Top 244%)
Finish26.22 mi1.02 mi5501-604723-114723-119097(Top 36%)5964(Top 41%)5964(Top 308%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 25%
×21stories
+97ft-345ft

Overall

6342

Males

5628

M50-54

5628

5K→10K

3.1 - 6.2 mi

Top 26%
×5stories
+79ft-138ft

Overall

6590

Males

5829

M50-54

5829

10K→15K

6.2 - 9.3 mi

Top 25%
×3stories
+67ft-78ft

Overall

6342

Males

5628

M50-54

5628

15K→20K

9.3 - 12.4 mi

Top 23%
×5stories
+106ft-86ft

Overall

5947

Males

5283

M50-54

5283

20K→Half

12.4 - 13.1 mi

Top 23%
×2stories
+19ft-37ft

Overall

5793

Males

5178

M50-54

5178

Half→25K

13.1 - 15.5 mi

Top 23%
×4stories
+66ft-88ft

Overall

5782

Males

5040

M50-54

5040

25K→30K

15.5 - 18.6 mi

Top 22%
×9stories
+181ft-148ft

Overall

5748

Males

4837

M50-54

4837

30K→20M

18.6 - 20.0 mi

Top 23%
×5stories
+64ft-50ft

Overall

5875

Males

4777

M50-54

4777

20M→21M

20.0 - 21.0 mi

Top 25%
×8stories
+106ft-24ft

Overall

6271

Males

4838

M50-54

4838

21M→35K

21.0 - 21.8 mi

Top 20%
×7stories
+17ft-86ft

Overall

5184

Males

4209

M50-54

4209

35K→23M

21.8 - 23.0 mi

Top 18%
×5stories
+23ft-63ft

Overall

4625

Males

3765

M50-54

3765

23M→24M

23.0 - 24.0 mi

Top 22%
×6stories
+12ft-82ft

Overall

5627

Males

4248

M50-54

4248

24M→40K

24.0 - 24.9 mi

Top 28%
×1story
+6ft-20ft

Overall

7116

Males

4917

M50-54

4917

40K→25.2M

24.9 - 25.2 mi

Top 27%
×1story
+13ft-16ft

Overall

6865

Males

4731

M50-54

4731

25.2M→Finish

25.2 - 26.2 mi

Top 36%
×2stories
+22ft-21ft

Overall

9097

Males

5964

M50-54

5964

Passing Analysis

Category:
Athletes Passed
2130
Passed By
971
Net Change
+1159
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6660
5K → 10K227175+52#6660#6608
10K → 15K206100+106#6608#6502
15K → 20K27160+211#6502#6291
20K → Half5520+35#6291#6256
Half → 25K21669+147#6256#6109
25K → 30K318105+213#6109#5896
30K → 20M13362+71#5896#5825
20M → 21M12359+64#5825#5761
21M → 35K10727+80#5761#5681
35K → 23M19730+167#5681#5514
23M → 24M11243+69#5514#5445
24M → 40K75750#5445#5445
40K → 25.2M3430+4#5445#5441
25.2M → Finish56116-60#5441#5501
TOTALS2130971+1159
📊

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