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BOSTON MARATHON 2025

Ivan Sanchez

Bib: 4551•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 15%
Gender (Male)
#0 / 16105
Top 25%
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
6:44/mi
20:55
↑ 97↓ 3451.5%
10K· 6.21 mi
6:45/mi
41:54
↑ 79↓ 1380.4%
15K· 9.32 mi
6:46/mi
1:02:54
↑ 67↓ 78
20K· 12.43 mi
6:48/mi
1:24:01
↑ 106↓ 860.1%
Half· 13.11 mi
6:42/mi
1:28:35
↑ 19↓ 370.5%
25K· 15.53 mi
6:51/mi
1:45:12
↑ 66↓ 880.2%
30K· 18.64 mi
7:01/mi
2:07:01
↑ 181↓ 1480.2%
20M
7:07/mi
2:16:41
↑ 64↓ 500.2%
21M
7:25/mi
2:24:06
↑ 106↓ 241.6%
35K· 21.75 mi
6:44/mi
2:29:08
↑ 17↓ 861.7%
23M
6:46/mi
2:37:36
↑ 23↓ 630.6%
24M
6:40/mi
2:44:16
↓ 821.3%
40K· 24.85 mi
6:48/mi
2:50:05
↓ 200.3%
25.2M
7:06/mi
2:52:32
↑ 13↓ 160.2%
Finish· 26.22 mi
6:25/mi
2:59:04
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:35
Pace6:45 /mi
2nd Half
Distance13.11 mi
Time1:30:29
Pace6:54 /mi
📊Positive Split: 2.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:0220:556:4420:55
6:44
-
10K
6.21 mi10:46:0141:546:4520:59
6:45
+0:01
15K
9.32 mi11:07:011:02:546:4521:00
6:46
+0:01
20K
12.43 mi11:28:081:24:016:4621:07
6:48
+0:02
Half
13.11 mi11:32:421:28:356:454:34
6:42
-0:06
25K
15.53 mi11:49:191:45:126:4616:37
6:51
+0:09
30K
18.64 mi12:11:082:07:016:4921:49
7:01
+0:10
20M
20.00 mi12:20:482:16:416:509:40
7:07
+0:06
21M
21.00 mi12:28:132:24:066:527:25
7:25
+0:18
35K
21.75 mi12:33:152:29:086:515:02
6:44
-0:41
23M
23.00 mi12:41:432:37:366:518:28
6:46
+0:02
24M
24.00 mi12:48:232:44:166:516:40
6:40
-0:06
40K
24.85 mi12:54:122:50:056:515:49
6:48
+0:08
25.2M
25.20 mi12:56:392:52:326:512:27
7:06
+0:18
Finish
26.22 mi13:03:112:59:046:506:32
6:25
-0:41

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

6:25 /mi

Average Pace

6:50 /mi

Slowest Pace

7:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:39:32

89% of race

Time at Steady Pace

19:32

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:50 /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 mi10:25:0220:556:4420:55
6:44
#5730
10K
6.21 mi10:46:0141:546:4520:59
6:45
#5772
15K
9.32 mi11:07:011:02:546:4521:00
6:46
#5687
20K
12.43 mi11:28:081:24:016:4621:07
6:48
#5579
Half
13.11 mi11:32:421:28:356:454:34
6:42
#5546
25K
15.53 mi11:49:191:45:126:4616:37
6:51
#5483
30K
18.64 mi12:11:082:07:016:4921:49
7:01
#5285
20M
20.00 mi12:20:482:16:416:509:40
7:07
#5213
21M
21.00 mi12:28:132:24:066:527:25
7:25
#5112
35K
21.75 mi12:33:152:29:086:515:02
6:44
#5041
23M
23.00 mi12:41:432:37:366:518:28
6:46
#4801
24M
24.00 mi12:48:232:44:166:516:40
6:40
#4674
40K
24.85 mi12:54:122:50:056:515:49
6:48
#4567
25.2M
25.20 mi12:56:392:52:326:512:27
7:06
#4494
Finish
26.22 mi13:03:112:59:046:506:32
6:25
#4378
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi5730529252925680(Top 20%)5184(Top 32%)5184(Top 92%)
10K6.21 mi3.10 mi5772-425323-315323-315881(Top 21%)5382(Top 33%)5382(Top 95%)
15K9.32 mi3.11 mi5687+855241+825241+825680(Top 20%)5184(Top 32%)5184(Top 92%)
20K12.43 mi3.11 mi5579+1085135+1065135+1065264(Top 19%)4839(Top 30%)4839(Top 86%)
Half13.11 mi0.68 mi5546+335101+345101+345229(Top 18%)4824(Top 30%)4824(Top 86%)
25K15.53 mi2.42 mi5483+635041+605041+605303(Top 19%)4850(Top 30%)4850(Top 86%)
30K18.64 mi3.11 mi5285+1984857+1844857+1844829(Top 17%)4401(Top 27%)4401(Top 78%)
20M20.00 mi1.36 mi5213+724780+774780+774753(Top 17%)4294(Top 27%)4294(Top 76%)
21M21.00 mi1.00 mi5112+1014693+874693+874203(Top 15%)3782(Top 23%)3782(Top 67%)
35K21.75 mi0.75 mi5041+714629+644629+643711(Top 13%)3358(Top 21%)3358(Top 60%)
23M23.00 mi1.25 mi4801+2404414+2154414+2152542(Top 9%)2353(Top 15%)2353(Top 42%)
24M24.00 mi1.00 mi4674+1274297+1174297+1172824(Top 10%)2591(Top 16%)2591(Top 46%)
40K24.85 mi0.85 mi4567+1074196+1014196+1012884(Top 10%)2610(Top 16%)2610(Top 46%)
25.2M25.20 mi0.35 mi4494+734127+694127+691855(Top 7%)1694(Top 11%)1694(Top 30%)
Finish26.22 mi1.02 mi4378+1164023+1044023+1042388(Top 8%)2180(Top 14%)2180(Top 39%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 20%
×21story building
+97ft-345ft

Overall

5680

Males

5184

M18-39

5184

5K→10K

3.1 - 6.2 mi

Top 21%
×5story building
+79ft-138ft

Overall

5881

Males

5382

M18-39

5382

10K→15K

6.2 - 9.3 mi

Top 20%
×3story building
+67ft-78ft

Overall

5680

Males

5184

M18-39

5184

15K→20K

9.3 - 12.4 mi

Top 19%
×5story building
+106ft-86ft

Overall

5264

Males

4839

M18-39

4839

20K→Half

12.4 - 13.1 mi

Top 18%
×2story building
+19ft-37ft

Overall

5229

Males

4824

M18-39

4824

Half→25K

13.1 - 15.5 mi

Top 19%
×4story building
+66ft-88ft

Overall

5303

Males

4850

M18-39

4850

25K→30K

15.5 - 18.6 mi

Top 17%
×9story building
+181ft-148ft

Overall

4829

Males

4401

M18-39

4401

30K→20M

18.6 - 20.0 mi

Top 17%
×5story building
+64ft-50ft

Overall

4753

Males

4294

M18-39

4294

20M→21M

20.0 - 21.0 mi

Top 15%
×8story building
+106ft-24ft

Overall

4203

Males

3782

M18-39

3782

21M→35K

21.0 - 21.8 mi

Top 13%
×7story building
+17ft-86ft

Overall

3711

Males

3358

M18-39

3358

35K→23M

21.8 - 23.0 mi

Top 9%
×5story building
+23ft-63ft

Overall

2542

Males

2353

M18-39

2353

23M→24M

23.0 - 24.0 mi

Top 10%
×6story building
+12ft-82ft

Overall

2824

Males

2591

M18-39

2591

24M→40K

24.0 - 24.9 mi

Top 10%
×1story
+6ft-20ft

Overall

2884

Males

2610

M18-39

2610

40K→25.2M

24.9 - 25.2 mi

Top 7%
×1story
+13ft-16ft

Overall

1855

Males

1694

M18-39

1694

25.2M→Finish

25.2 - 26.2 mi

Top 8%
×2story building
+22ft-21ft

Overall

2388

Males

2180

M18-39

2180

Passing Analysis

Category:
Athletes Passed
1964
Passed By
612
Net Change
+1352
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5730
5K → 10K157199-42#5730#5772
10K → 15K16277+85#5772#5687
15K → 20K18375+108#5687#5579
20K → Half429+33#5579#5546
Half → 25K14481+63#5546#5483
25K → 30K25961+198#5483#5285
30K → 20M10836+72#5285#5213
20M → 21M13332+101#5213#5112
21M → 35K8413+71#5112#5041
35K → 23M2444+240#5041#4801
23M → 24M1336+127#4801#4674
24M → 40K1147+107#4674#4567
40K → 25.2M741+73#4567#4494
25.2M → Finish12711+116#4494#4378
TOTALS1964612+1352
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing