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BOSTON MARATHON 2025

Nicolas Ansara

Bib: 3850•M

AZ

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 4%
Gender (Male)
#0 / 16105
Top 7%
Division (M18-39)
#0 / 5642
Top 16%
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
6:18/mi
19:33
↑ 97↓ 3451.5%
10K· 6.21 mi
6:10/mi
38:44
↑ 79↓ 1380.4%
15K· 9.32 mi
6:11/mi
57:58
↑ 67↓ 78
20K· 12.43 mi
6:11/mi
1:17:10
↑ 106↓ 860.1%
Half· 13.11 mi
6:11/mi
1:21:23
↑ 19↓ 370.5%
25K· 15.53 mi
6:12/mi
1:36:25
↑ 66↓ 880.2%
30K· 18.64 mi
6:17/mi
1:55:56
↑ 181↓ 1480.2%
20M
6:18/mi
2:04:30
↑ 64↓ 500.2%
21M
6:29/mi
2:10:59
↑ 106↓ 241.6%
35K· 21.75 mi
6:13/mi
2:15:38
↑ 17↓ 861.7%
23M
6:11/mi
2:23:22
↑ 23↓ 630.6%
24M
6:00/mi
2:29:22
↓ 821.3%
40K· 24.85 mi
6:08/mi
2:34:37
↓ 200.3%
25.2M
6:37/mi
2:36:54
↑ 13↓ 160.2%
Finish· 26.22 mi
5:54/mi
2:42:55
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:21:23
Pace6:12 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:21:32
Pace6:13 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:5519:336:1819:33
6:18
-
10K
6.21 mi10:42:0638:446:1419:11
6:10
-0:08
15K
9.32 mi11:01:2057:586:1319:14
6:11
+0:01
20K
12.43 mi11:20:321:17:106:1319:12
6:11
0:00
Half
13.11 mi11:24:451:21:236:124:13
6:11
0:00
25K
15.53 mi11:39:471:36:256:1215:02
6:12
+0:01
30K
18.64 mi11:59:181:55:566:1319:31
6:17
+0:05
20M
20.00 mi12:07:522:04:306:138:34
6:18
+0:01
21M
21.00 mi12:14:212:10:596:146:29
6:29
+0:11
35K
21.75 mi12:19:002:15:386:144:39
6:13
-0:16
23M
23.00 mi12:26:442:23:226:147:44
6:11
-0:02
24M
24.00 mi12:32:442:29:226:136:00
6:00
-0:11
40K
24.85 mi12:37:592:34:376:135:15
6:08
+0:08
25.2M
25.20 mi12:40:162:36:546:142:17
6:37
+0:29
Finish
26.22 mi12:46:172:42:556:136:01
5:54
-0:43

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

5:54 /mi

Average Pace

6:13 /mi

Slowest Pace

6:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:40:38

99% of race

Time at Steady Pace

2:17

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:13 /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 mi10:22:5519:336:1819:33
6:18
#2385
10K
6.21 mi10:42:0638:446:1419:11
6:10
#2043
15K
9.32 mi11:01:2057:586:1319:14
6:11
#1930
20K
12.43 mi11:20:321:17:106:1319:12
6:11
#1798
Half
13.11 mi11:24:451:21:236:124:13
6:11
#1800
25K
15.53 mi11:39:471:36:256:1215:02
6:12
#1708
30K
18.64 mi11:59:181:55:566:1319:31
6:17
#1578
20M
20.00 mi12:07:522:04:306:138:34
6:18
#1485
21M
21.00 mi12:14:212:10:596:146:29
6:29
#1403
35K
21.75 mi12:19:002:15:386:144:39
6:13
#1372
23M
23.00 mi12:26:442:23:226:147:44
6:11
#1286
24M
24.00 mi12:32:442:29:226:136:00
6:00
#1226
40K
24.85 mi12:37:592:34:376:135:15
6:08
#1170
25.2M
25.20 mi12:40:162:36:546:142:17
6:37
#1151
Finish
26.22 mi12:46:172:42:556:136:01
5:54
#1112
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2385227122711802(Top 6%)1713(Top 11%)1713(Top 30%)
10K6.21 mi3.10 mi2043+3421948+3231948+3231780(Top 6%)1689(Top 10%)1689(Top 30%)
15K9.32 mi3.11 mi1930+1131836+1121836+1121802(Top 6%)1713(Top 11%)1713(Top 30%)
20K12.43 mi3.11 mi1798+1321709+1271709+1271488(Top 5%)1410(Top 9%)1410(Top 25%)
Half13.11 mi0.68 mi1800-21711-21711-21821(Top 6%)1734(Top 11%)1734(Top 31%)
25K15.53 mi2.42 mi1708+921621+901621+901442(Top 5%)1370(Top 9%)1370(Top 24%)
30K18.64 mi3.11 mi1578+1301495+1261495+1261149(Top 4%)1083(Top 7%)1083(Top 19%)
20M20.00 mi1.36 mi1485+931405+901405+90978(Top 3%)923(Top 6%)923(Top 16%)
21M21.00 mi1.00 mi1403+821325+801325+80658(Top 2%)622(Top 4%)622(Top 11%)
35K21.75 mi0.75 mi1372+311294+311294+311259(Top 4%)1189(Top 7%)1189(Top 21%)
23M23.00 mi1.25 mi1286+861211+831211+83640(Top 2%)604(Top 4%)604(Top 11%)
24M24.00 mi1.00 mi1226+601153+581153+58592(Top 2%)555(Top 3%)555(Top 10%)
40K24.85 mi0.85 mi1170+561101+521101+52621(Top 2%)581(Top 4%)581(Top 10%)
25.2M25.20 mi0.35 mi1151+191083+181083+18635(Top 2%)590(Top 4%)590(Top 10%)
Finish26.22 mi1.02 mi1112+391048+351048+35694(Top 2%)654(Top 4%)654(Top 12%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 6%
×21story building
+97ft-345ft

Overall

1802

Males

1713

M18-39

1713

5K→10K

3.1 - 6.2 mi

Top 6%
×5story building
+79ft-138ft

Overall

1780

Males

1689

M18-39

1689

10K→15K

6.2 - 9.3 mi

Top 6%
×3story building
+67ft-78ft

Overall

1802

Males

1713

M18-39

1713

15K→20K

9.3 - 12.4 mi

Top 5%
×5story building
+106ft-86ft

Overall

1488

Males

1410

M18-39

1410

20K→Half

12.4 - 13.1 mi

Top 6%
×2story building
+19ft-37ft

Overall

1821

Males

1734

M18-39

1734

Half→25K

13.1 - 15.5 mi

Top 5%
×4story building
+66ft-88ft

Overall

1442

Males

1370

M18-39

1370

25K→30K

15.5 - 18.6 mi

Top 4%
×9story building
+181ft-148ft

Overall

1149

Males

1083

M18-39

1083

30K→20M

18.6 - 20.0 mi

Top 3%
×5story building
+64ft-50ft

Overall

978

Males

923

M18-39

923

20M→21M

20.0 - 21.0 mi

Top 2%
×8story building
+106ft-24ft

Overall

658

Males

622

M18-39

622

21M→35K

21.0 - 21.8 mi

Top 4%
×7story building
+17ft-86ft

Overall

1259

Males

1189

M18-39

1189

35K→23M

21.8 - 23.0 mi

Top 2%
×5story building
+23ft-63ft

Overall

640

Males

604

M18-39

604

23M→24M

23.0 - 24.0 mi

Top 2%
×6story building
+12ft-82ft

Overall

592

Males

555

M18-39

555

24M→40K

24.0 - 24.9 mi

Top 2%
×1story
+6ft-20ft

Overall

621

Males

581

M18-39

581

40K→25.2M

24.9 - 25.2 mi

Top 2%
×1story
+13ft-16ft

Overall

635

Males

590

M18-39

590

25.2M→Finish

25.2 - 26.2 mi

Top 2%
×2story building
+22ft-21ft

Overall

694

Males

654

M18-39

654

Passing Analysis

Category:
Athletes Passed
1367
Passed By
94
Net Change
+1273
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2385
5K → 10K35816+342#2385#2043
10K → 15K12714+113#2043#1930
15K → 20K1408+132#1930#1798
20K → Half1012-2#1798#1800
Half → 25K10311+92#1800#1708
25K → 30K14313+130#1708#1578
30K → 20M941+93#1578#1485
20M → 21M864+82#1485#1403
21M → 35K332+31#1403#1372
35K → 23M882+86#1372#1286
23M → 24M600+60#1286#1226
24M → 40K604+56#1226#1170
40K → 25.2M201+19#1170#1151
25.2M → Finish456+39#1151#1112
TOTALS136794+1273
📊

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