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BOSTON MARATHON 2025

John Ignacz

Bib: 1057•M

NJ

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 3%
Gender (Male)
#0 / 16105
Top 5%
Division (M18-39)
#0 / 5642
Top 13%
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
5:41/mi
17:38
↑ 97↓ 3451.5%
10K· 6.21 mi
5:42/mi
35:19
↑ 79↓ 1380.4%
15K· 9.32 mi
5:42/mi
53:03
↑ 67↓ 78
20K· 12.43 mi
5:43/mi
1:10:50
↑ 106↓ 860.1%
Half· 13.11 mi
5:39/mi
1:14:41
↑ 19↓ 370.5%
25K· 15.53 mi
5:47/mi
1:28:42
↑ 66↓ 880.2%
30K· 18.64 mi
6:10/mi
1:47:52
↑ 181↓ 1480.2%
20M
6:32/mi
1:56:45
↑ 64↓ 500.2%
21M
7:07/mi
2:03:52
↑ 106↓ 241.6%
35K· 21.75 mi
6:44/mi
2:08:54
↑ 17↓ 861.7%
23M
7:26/mi
2:18:12
↑ 23↓ 630.6%
24M
7:09/mi
2:25:21
↓ 821.3%
40K· 24.85 mi
7:08/mi
2:31:27
↓ 200.3%
25.2M
7:35/mi
2:34:04
↑ 13↓ 160.2%
Finish· 26.22 mi
6:47/mi
2:40:59
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:14:41
Pace5:42 /mi
2nd Half
Distance13.11 mi
Time1:26:18
Pace6:35 /mi
📊Positive Split: 15.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:17:4217:385:4117:38
5:41
-
10K
6.21 mi10:35:2335:195:4117:41
5:42
+0:01
15K
9.32 mi10:53:0753:035:4217:44
5:42
0:00
20K
12.43 mi11:10:541:10:505:4217:47
5:43
+0:01
Half
13.11 mi11:14:451:14:415:423:51
5:39
-0:04
25K
15.53 mi11:28:461:28:425:4314:01
5:47
+0:08
30K
18.64 mi11:47:561:47:525:4719:10
6:10
+0:23
20M
20.00 mi11:56:491:56:455:508:53
6:32
+0:22
21M
21.00 mi12:03:562:03:525:547:07
7:07
+0:35
35K
21.75 mi12:08:582:08:545:565:02
6:44
-0:23
23M
23.00 mi12:18:162:18:126:019:18
7:26
+0:42
24M
24.00 mi12:25:252:25:216:037:09
7:09
-0:17
40K
24.85 mi12:31:312:31:276:066:06
7:08
-0:01
25.2M
25.20 mi12:34:082:34:046:072:37
7:35
+0:27
Finish
26.22 mi12:41:032:40:596:096:55
6:47
-0:48

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

5:39 /mi

Average Pace

6:09 /mi

Slowest Pace

7:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:47:52

67% of race

Time at Steady Pace

20:50

13% of race

Time at Slower Pace

32:17

20% of race

Average Pace: 6:08 /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 mi10:17:4217:385:4117:38
5:41
#393
10K
6.21 mi10:35:2335:195:4117:41
5:42
#414
15K
9.32 mi10:53:0753:035:4217:44
5:42
#391
20K
12.43 mi11:10:541:10:505:4217:47
5:43
#377
Half
13.11 mi11:14:451:14:415:423:51
5:39
#375
25K
15.53 mi11:28:461:28:425:4314:01
5:47
#377
30K
18.64 mi11:47:561:47:525:4719:10
6:10
#416
20M
20.00 mi11:56:491:56:455:508:53
6:32
#461
21M
21.00 mi12:03:562:03:525:547:07
7:07
#498
35K
21.75 mi12:08:582:08:545:565:02
6:44
#546
23M
23.00 mi12:18:162:18:126:019:18
7:26
#669
24M
24.00 mi12:25:252:25:216:037:09
7:09
#744
40K
24.85 mi12:31:312:31:276:066:06
7:08
#805
25.2M
25.20 mi12:34:082:34:046:072:37
7:35
#829
Finish
26.22 mi12:41:032:40:596:096:55
6:47
#904
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi393360360399(Top 1%)369(Top 2%)369(Top 7%)
10K6.21 mi3.10 mi414-21380-20380-20434(Top 2%)399(Top 2%)399(Top 7%)
15K9.32 mi3.11 mi391+23360+20360+20399(Top 1%)369(Top 2%)369(Top 7%)
20K12.43 mi3.11 mi377+14347+13347+13350(Top 1%)321(Top 2%)321(Top 6%)
Half13.11 mi0.68 mi375+2345+2345+2373(Top 1%)347(Top 2%)347(Top 6%)
25K15.53 mi2.42 mi377-2345345394(Top 1%)365(Top 2%)365(Top 6%)
30K18.64 mi3.11 mi416-39383-38383-38836(Top 3%)782(Top 5%)782(Top 14%)
20M20.00 mi1.36 mi461-45426-43426-431743(Top 6%)1649(Top 10%)1649(Top 29%)
21M21.00 mi1.00 mi498-37457-31457-312713(Top 10%)2516(Top 16%)2516(Top 45%)
35K21.75 mi0.75 mi546-48502-45502-453620(Top 13%)3267(Top 20%)3267(Top 58%)
23M23.00 mi1.25 mi669-123621-119621-1196169(Top 22%)5062(Top 31%)5062(Top 90%)
24M24.00 mi1.00 mi744-75695-74695-745468(Top 19%)4565(Top 28%)4565(Top 81%)
40K24.85 mi0.85 mi805-61753-58753-584619(Top 16%)3924(Top 24%)3924(Top 70%)
25.2M25.20 mi0.35 mi829-24775-22775-223711(Top 13%)3193(Top 20%)3193(Top 57%)
Finish26.22 mi1.02 mi904-75847-72847-724382(Top 15%)3698(Top 23%)3698(Top 66%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 1%
×21story building
+97ft-345ft

Overall

399

Males

369

M18-39

369

5K→10K

3.1 - 6.2 mi

Top 2%
×5story building
+79ft-138ft

Overall

434

Males

399

M18-39

399

10K→15K

6.2 - 9.3 mi

Top 1%
×3story building
+67ft-78ft

Overall

399

Males

369

M18-39

369

15K→20K

9.3 - 12.4 mi

Top 1%
×5story building
+106ft-86ft

Overall

350

Males

321

M18-39

321

20K→Half

12.4 - 13.1 mi

Top 1%
×2story building
+19ft-37ft

Overall

373

Males

347

M18-39

347

Half→25K

13.1 - 15.5 mi

Top 1%
×4story building
+66ft-88ft

Overall

394

Males

365

M18-39

365

25K→30K

15.5 - 18.6 mi

Top 3%
×9story building
+181ft-148ft

Overall

836

Males

782

M18-39

782

30K→20M

18.6 - 20.0 mi

Top 6%
×5story building
+64ft-50ft

Overall

1743

Males

1649

M18-39

1649

20M→21M

20.0 - 21.0 mi

Top 10%
×8story building
+106ft-24ft

Overall

2713

Males

2516

M18-39

2516

21M→35K

21.0 - 21.8 mi

Top 13%
×7story building
+17ft-86ft

Overall

3620

Males

3267

M18-39

3267

35K→23M

21.8 - 23.0 mi

Top 22%
×5story building
+23ft-63ft

Overall

6169

Males

5062

M18-39

5062

23M→24M

23.0 - 24.0 mi

Top 19%
×6story building
+12ft-82ft

Overall

5468

Males

4565

M18-39

4565

24M→40K

24.0 - 24.9 mi

Top 16%
×1story
+6ft-20ft

Overall

4619

Males

3924

M18-39

3924

40K→25.2M

24.9 - 25.2 mi

Top 13%
×1story
+13ft-16ft

Overall

3711

Males

3193

M18-39

3193

25.2M→Finish

25.2 - 26.2 mi

Top 15%
×2story building
+22ft-21ft

Overall

4382

Males

3698

M18-39

3698

Passing Analysis

Category:
Athletes Passed
108
Passed By
619
Net Change
-511
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#393
5K → 10K1536-21#393#414
10K → 15K318+23#414#391
15K → 20K228+14#391#377
20K → Half31+2#377#375
Half → 25K1012-2#375#377
25K → 30K847-39#377#416
30K → 20M146-45#416#461
20M → 21M340-37#461#498
21M → 35K351-48#498#546
35K → 23M1124-123#546#669
23M → 24M277-75#669#744
24M → 40K364-61#744#805
40K → 25.2M125-24#805#829
25.2M → Finish580-75#829#904
TOTALS108619-511
📊

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