Boston Marathon logo
BOSTON MARATHON 2025

Julio César Hernández Sánchez

Bib: 7538•M

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Top 25%
Gender (Male)
#0 / 16105
Top 37%
Masters (Masters Men)
#0 / 10463
Top 24%
Division (M45-49)
#0 / 2386
Top 33%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:58
Rank: #5877
Start → 5K
20:58 | 6:45/mi
10K· 6.21 mi
42:09
Rank: #6134 (-257)
5K → 10K
21:11 | 6:49/mi
15K· 9.32 mi
1:03:39
Rank: #6473 (-339)
10K → 15K
21:30 | 6:55/mi
20K· 12.43 mi
1:25:45
Rank: #6812 (-339)
15K → 20K
22:06 | 7:07/mi
Half· 13.11 mi
1:30:36
Rank: #6911 (-99)
20K → Half
4:51 | 7:07/mi
25K· 15.53 mi
1:48:05
Rank: #6985 (-74)
Half → 25K
17:29 | 7:13/mi
30K· 18.64 mi
2:11:22
Rank: #6975 (+10)
25K → 30K
23:17 | 7:30/mi
20M
2:21:37
Rank: #6924 (+51)
30K → 20M
10:15 | 7:33/mi
21M
2:29:40
Rank: #6880 (+44)
20M → 21M
8:03 | 8:03/mi
35K· 21.75 mi
2:35:15
Rank: #6913 (-33)
21M → 35K
5:35 | 7:28/mi
23M
2:44:57
Rank: #6924 (-11)
35K → 23M
9:42 | 7:45/mi
24M
2:52:33
Rank: #6930 (-6)
23M → 24M
7:36 | 7:36/mi
40K· 24.85 mi
2:59:01
Rank: #6893 (+37)
24M → 40K
6:28 | 7:34/mi
25.2M
3:01:58
Rank: #6903 (-10)
40K → 25.2M
2:57 | 8:33/mi
Finish· 26.22 mi
3:09:47
Rank: #6993 (-90)
25.2M → Finish
7:49 | 7:40/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
Time1:30:36
Pace6:55 /mi
2nd Half
Distance13.11 mi
Time1:39:11
Pace7:34 /mi
📊Positive Split: 9.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:3620:586:4520:58
6:45
-
10K
6.21 mi11:07:4742:096:4721:11
6:49
+0:04
15K
9.32 mi11:29:171:03:396:5021:30
6:55
+0:06
20K
12.43 mi11:51:231:25:456:5422:06
7:07
+0:12
Half
13.11 mi11:56:141:30:366:554:51
7:07
0:00
25K
15.53 mi12:13:431:48:056:5717:29
7:13
+0:06
30K
18.64 mi12:37:002:11:227:0323:17
7:30
+0:17
20M
20.00 mi12:47:152:21:377:0510:15
7:33
+0:03
21M
21.00 mi12:55:182:29:407:088:03
8:03
+0:30
35K
21.75 mi13:00:532:35:157:085:35
7:28
-0:35
23M
23.00 mi13:10:352:44:577:109:42
7:45
+0:17
24M
24.00 mi13:18:112:52:337:117:36
7:36
-0:09
40K
24.85 mi13:24:392:59:017:126:28
7:34
-0:02
25.2M
25.20 mi13:27:363:01:587:132:57
8:33
+0:59
Finish
26.22 mi13:35:253:09:477:157:49
7:40
-0:53

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

6:45 /mi

Average Pace

7:15 /mi

Slowest Pace

8:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:48:05

57% of race

Time at Steady Pace

1:01:00

32% of race

Time at Slower Pace

20:42

11% of race

Average Pace: 7:14 /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 mi10:46:3620:586:4520:58
6:45
#5877
10K
6.21 mi11:07:4742:096:4721:11
6:49
#6134
15K
9.32 mi11:29:171:03:396:5021:30
6:55
#6473
20K
12.43 mi11:51:231:25:456:5422:06
7:07
#6812
Half
13.11 mi11:56:141:30:366:554:51
7:07
#6911
25K
15.53 mi12:13:431:48:056:5717:29
7:13
#6985
30K
18.64 mi12:37:002:11:227:0323:17
7:30
#6975
20M
20.00 mi12:47:152:21:377:0510:15
7:33
#6924
21M
21.00 mi12:55:182:29:407:088:03
8:03
#6880
35K
21.75 mi13:00:532:35:157:085:35
7:28
#6913
23M
23.00 mi13:10:352:44:577:109:42
7:45
#6924
24M
24.00 mi13:18:112:52:337:117:36
7:36
#6930
40K
24.85 mi13:24:392:59:017:126:28
7:34
#6893
25.2M
25.20 mi13:27:363:01:587:132:57
8:33
#6903
Finish
26.22 mi13:35:253:09:477:157:49
7:40
#6993
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi5877541254127081(Top 25%)6309(Top 39%)6309(Top 264%)
10K6.21 mi3.10 mi6134-2575622-2105622-2106578(Top 23%)5944(Top 37%)5944(Top 249%)
15K9.32 mi3.11 mi6473-3395873-2515873-2517081(Top 25%)6309(Top 39%)6309(Top 264%)
20K12.43 mi3.11 mi6812-3396136-2636136-2637591(Top 27%)6605(Top 41%)6605(Top 277%)
Half13.11 mi0.68 mi6911-996207-716207-718281(Top 29%)7050(Top 44%)7050(Top 295%)
25K15.53 mi2.42 mi6985-746247-406247-407672(Top 27%)6553(Top 41%)6553(Top 275%)
30K18.64 mi3.11 mi6975+106190+576190+577693(Top 27%)6403(Top 40%)6403(Top 268%)
20M20.00 mi1.36 mi6924+516124+666124+667267(Top 26%)5991(Top 37%)5991(Top 251%)
21M21.00 mi1.00 mi6880+446074+506074+507601(Top 27%)6019(Top 37%)6019(Top 252%)
35K21.75 mi0.75 mi6913-336075-16075-18304(Top 29%)6468(Top 40%)6468(Top 271%)
23M23.00 mi1.25 mi6924-116048+276048+278169(Top 29%)6253(Top 39%)6253(Top 262%)
24M24.00 mi1.00 mi6930-66018+306018+308377(Top 29%)6306(Top 39%)6306(Top 264%)
40K24.85 mi0.85 mi6893+375968+505968+507141(Top 25%)5502(Top 34%)5502(Top 231%)
25.2M25.20 mi0.35 mi6903-105961+75961+78995(Top 32%)6414(Top 40%)6414(Top 269%)
Finish26.22 mi1.02 mi6993-905990-295990-2910428(Top 37%)7198(Top 45%)7198(Top 302%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 25%
×21stories
+97ft-345ft

Overall

7081

Males

6309

M45-49

6309

5K→10K

3.1 - 6.2 mi

Top 23%
×5stories
+79ft-138ft

Overall

6578

Males

5944

M45-49

5944

10K→15K

6.2 - 9.3 mi

Top 25%
×3stories
+67ft-78ft

Overall

7081

Males

6309

M45-49

6309

15K→20K

9.3 - 12.4 mi

Top 27%
×5stories
+106ft-86ft

Overall

7591

Males

6605

M45-49

6605

20K→Half

12.4 - 13.1 mi

Top 29%
×2stories
+19ft-37ft

Overall

8281

Males

7050

M45-49

7050

Half→25K

13.1 - 15.5 mi

Top 27%
×4stories
+66ft-88ft

Overall

7672

Males

6553

M45-49

6553

25K→30K

15.5 - 18.6 mi

Top 27%
×9stories
+181ft-148ft

Overall

7693

Males

6403

M45-49

6403

30K→20M

18.6 - 20.0 mi

Top 26%
×5stories
+64ft-50ft

Overall

7267

Males

5991

M45-49

5991

20M→21M

20.0 - 21.0 mi

Top 27%
×8stories
+106ft-24ft

Overall

7601

Males

6019

M45-49

6019

21M→35K

21.0 - 21.8 mi

Top 29%
×7stories
+17ft-86ft

Overall

8304

Males

6468

M45-49

6468

35K→23M

21.8 - 23.0 mi

Top 29%
×5stories
+23ft-63ft

Overall

8169

Males

6253

M45-49

6253

23M→24M

23.0 - 24.0 mi

Top 29%
×6stories
+12ft-82ft

Overall

8377

Males

6306

M45-49

6306

24M→40K

24.0 - 24.9 mi

Top 25%
×1story
+6ft-20ft

Overall

7141

Males

5502

M45-49

5502

40K→25.2M

24.9 - 25.2 mi

Top 32%
×1story
+13ft-16ft

Overall

8995

Males

6414

M45-49

6414

25.2M→Finish

25.2 - 26.2 mi

Top 37%
×2stories
+22ft-21ft

Overall

10428

Males

7198

M45-49

7198

Passing Analysis

Category:
Athletes Passed
1078
Passed By
2194
Net Change
-1116
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5877
5K → 10K103360-257#5877#6134
10K → 15K66405-339#6134#6473
15K → 20K46385-339#6473#6812
20K → Half8107-99#6812#6911
Half → 25K99173-74#6911#6985
25K → 30K179169+10#6985#6975
30K → 20M11766+51#6975#6924
20M → 21M11470+44#6924#6880
21M → 35K4679-33#6880#6913
35K → 23M89100-11#6913#6924
23M → 24M6975-6#6924#6930
24M → 40K8043+37#6930#6893
40K → 25.2M2232-10#6893#6903
25.2M → Finish40130-90#6903#6993
TOTALS10782194-1116
📊

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