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BOSTON MARATHON 2025

Daniel Heidtke

Bib: 3037•M

TX

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 9%
Gender (Male)
#0 / 16105
Top 15%
Division (M18-39)
#0 / 5642
Top 35%
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
6:13/mi
19:19
↑ 97↓ 3451.5%
10K· 6.21 mi
6:22/mi
39:05
↑ 79↓ 1380.4%
15K· 9.32 mi
6:24/mi
58:58
↑ 67↓ 78
20K· 12.43 mi
6:28/mi
1:19:04
↑ 106↓ 860.1%
Half· 13.11 mi
6:20/mi
1:23:23
↑ 19↓ 370.5%
25K· 15.53 mi
6:27/mi
1:39:02
↑ 66↓ 880.2%
30K· 18.64 mi
6:39/mi
1:59:41
↑ 181↓ 1480.2%
20M
6:52/mi
2:09:01
↑ 64↓ 500.2%
21M
7:33/mi
2:16:34
↑ 106↓ 241.6%
35K· 21.75 mi
6:41/mi
2:21:34
↑ 17↓ 861.7%
23M
6:55/mi
2:30:13
↑ 23↓ 630.6%
24M
6:29/mi
2:36:42
↓ 821.3%
40K· 24.85 mi
7:08/mi
2:42:48
↓ 200.3%
25.2M
7:35/mi
2:45:25
↑ 13↓ 160.2%
Finish· 26.22 mi
6:19/mi
2:51:51
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:23:23
Pace6:22 /mi
2nd Half
Distance13.11 mi
Time1:28:28
Pace6:45 /mi
📊Positive Split: 6.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:4819:196:1319:19
6:13
-
10K
6.21 mi10:40:3439:056:1719:46
6:22
+0:09
15K
9.32 mi11:00:2758:586:2019:53
6:24
+0:02
20K
12.43 mi11:20:331:19:046:2220:06
6:28
+0:04
Half
13.11 mi11:24:521:23:236:224:19
6:20
-0:08
25K
15.53 mi11:40:311:39:026:2315:39
6:27
+0:07
30K
18.64 mi12:01:101:59:416:2520:39
6:39
+0:12
20M
20.00 mi12:10:302:09:016:279:20
6:52
+0:13
21M
21.00 mi12:18:032:16:346:307:33
7:33
+0:41
35K
21.75 mi12:23:032:21:346:315:00
6:41
-0:52
23M
23.00 mi12:31:422:30:136:328:39
6:55
+0:14
24M
24.00 mi12:38:112:36:426:326:29
6:29
-0:26
40K
24.85 mi12:44:172:42:486:336:06
7:08
+0:39
25.2M
25.20 mi12:46:542:45:256:342:37
7:35
+0:27
Finish
26.22 mi12:53:202:51:516:346:26
6:19
-1:16

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

6:13 /mi

Average Pace

6:34 /mi

Slowest Pace

7:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

19:19

11% of race

Time at Steady Pace

1:58:17

69% of race

Time at Slower Pace

34:15

20% of race

Average Pace: 6:33 /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 mi10:20:4819:196:1319:19
6:13
#1966
10K
6.21 mi10:40:3439:056:1719:46
6:22
#2344
15K
9.32 mi11:00:2758:586:2019:53
6:24
#2550
20K
12.43 mi11:20:331:19:046:2220:06
6:28
#2623
Half
13.11 mi11:24:521:23:236:224:19
6:20
#2623
25K
15.53 mi11:40:311:39:026:2315:39
6:27
#2602
30K
18.64 mi12:01:101:59:416:2520:39
6:39
#2562
20M
20.00 mi12:10:302:09:016:279:20
6:52
#2583
21M
21.00 mi12:18:032:16:346:307:33
7:33
#2694
35K
21.75 mi12:23:032:21:346:315:00
6:41
#2694
23M
23.00 mi12:31:422:30:136:328:39
6:55
#2691
24M
24.00 mi12:38:112:36:426:326:29
6:29
#2619
40K
24.85 mi12:44:172:42:486:336:06
7:08
#2655
25.2M
25.20 mi12:46:542:45:256:342:37
7:35
#2668
Finish
26.22 mi12:53:202:51:516:346:26
6:19
#2605
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1966186918692948(Top 10%)2812(Top 17%)2812(Top 50%)
10K6.21 mi3.10 mi2344-3782235-3662235-3662818(Top 10%)2684(Top 17%)2684(Top 48%)
15K9.32 mi3.11 mi2550-2062431-1962431-1962948(Top 10%)2812(Top 17%)2812(Top 50%)
20K12.43 mi3.11 mi2623-732503-722503-722944(Top 10%)2804(Top 17%)2804(Top 50%)
Half13.11 mi0.68 mi26232504-12504-12703(Top 10%)2586(Top 16%)2586(Top 46%)
25K15.53 mi2.42 mi2602+212484+202484+202651(Top 9%)2524(Top 16%)2524(Top 45%)
30K18.64 mi3.11 mi2562+402448+362448+362634(Top 9%)2493(Top 15%)2493(Top 44%)
20M20.00 mi1.36 mi2583-212467-192467-193327(Top 12%)3078(Top 19%)3078(Top 55%)
21M21.00 mi1.00 mi2694-1112565-982565-984863(Top 17%)4273(Top 27%)4273(Top 76%)
35K21.75 mi0.75 mi26942563+22563+23417(Top 12%)3116(Top 19%)3116(Top 55%)
23M23.00 mi1.25 mi2691+32557+62557+63257(Top 11%)2968(Top 18%)2968(Top 53%)
24M24.00 mi1.00 mi2619+722486+712486+712000(Top 7%)1857(Top 12%)1857(Top 33%)
40K24.85 mi0.85 mi2655-362517-312517-314668(Top 16%)3973(Top 25%)3973(Top 70%)
25.2M25.20 mi0.35 mi2668-132527-102527-103824(Top 13%)3306(Top 21%)3306(Top 59%)
Finish26.22 mi1.02 mi2605+632465+622465+621968(Top 7%)1812(Top 11%)1812(Top 32%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 10%
×21story building
+97ft-345ft

Overall

2948

Males

2812

M18-39

2812

5K→10K

3.1 - 6.2 mi

Top 10%
×5story building
+79ft-138ft

Overall

2818

Males

2684

M18-39

2684

10K→15K

6.2 - 9.3 mi

Top 10%
×3story building
+67ft-78ft

Overall

2948

Males

2812

M18-39

2812

15K→20K

9.3 - 12.4 mi

Top 10%
×5story building
+106ft-86ft

Overall

2944

Males

2804

M18-39

2804

20K→Half

12.4 - 13.1 mi

Top 10%
×2story building
+19ft-37ft

Overall

2703

Males

2586

M18-39

2586

Half→25K

13.1 - 15.5 mi

Top 9%
×4story building
+66ft-88ft

Overall

2651

Males

2524

M18-39

2524

25K→30K

15.5 - 18.6 mi

Top 9%
×9story building
+181ft-148ft

Overall

2634

Males

2493

M18-39

2493

30K→20M

18.6 - 20.0 mi

Top 12%
×5story building
+64ft-50ft

Overall

3327

Males

3078

M18-39

3078

20M→21M

20.0 - 21.0 mi

Top 17%
×8story building
+106ft-24ft

Overall

4863

Males

4273

M18-39

4273

21M→35K

21.0 - 21.8 mi

Top 12%
×7story building
+17ft-86ft

Overall

3417

Males

3116

M18-39

3116

35K→23M

21.8 - 23.0 mi

Top 11%
×5story building
+23ft-63ft

Overall

3257

Males

2968

M18-39

2968

23M→24M

23.0 - 24.0 mi

Top 7%
×6story building
+12ft-82ft

Overall

2000

Males

1857

M18-39

1857

24M→40K

24.0 - 24.9 mi

Top 16%
×1story
+6ft-20ft

Overall

4668

Males

3973

M18-39

3973

40K→25.2M

24.9 - 25.2 mi

Top 13%
×1story
+13ft-16ft

Overall

3824

Males

3306

M18-39

3306

25.2M→Finish

25.2 - 26.2 mi

Top 7%
×2story building
+22ft-21ft

Overall

1968

Males

1812

M18-39

1812

Passing Analysis

Category:
Athletes Passed
635
Passed By
1274
Net Change
-639
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1966
5K → 10K18396-378#1966#2344
10K → 15K25231-206#2344#2550
15K → 20K56129-73#2550#2623
20K → Half17170#2623#2623
Half → 25K7251+21#2623#2602
25K → 30K10565+40#2602#2562
30K → 20M4566-21#2562#2583
20M → 21M28139-111#2583#2694
21M → 35K25250#2694#2694
35K → 23M5855+3#2694#2691
23M → 24M819+72#2691#2619
24M → 40K2662-36#2619#2655
40K → 25.2M1124-13#2655#2668
25.2M → Finish685+63#2668#2605
TOTALS6351274-639
📊

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