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BOSTON MARATHON 2025

Christopher Baldwin

Bib: 4814•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 11%
Gender (Male)
#0 / 16105
Top 19%
Division (M18-39)
#0 / 5642
Top 41%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:24
Rank: #4296
Start → 5K
20:24 | 6:34/mi
10K· 6.21 mi
40:49
Rank: #4258 (+38)
5K → 10K
20:25 | 6:34/mi
15K· 9.32 mi
1:00:39
Rank: #3741 (+517)
10K → 15K
19:50 | 6:23/mi
20K· 12.43 mi
1:20:50
Rank: #3542 (+199)
15K → 20K
20:11 | 6:30/mi
Half· 13.11 mi
1:25:13
Rank: #3509 (+33)
20K → Half
4:23 | 6:25/mi
25K· 15.53 mi
1:40:57
Rank: #3366 (+143)
Half → 25K
15:44 | 6:29/mi
30K· 18.64 mi
2:01:52
Rank: #3254 (+112)
25K → 30K
20:55 | 6:44/mi
20M
2:11:11
Rank: #3203 (+51)
30K → 20M
9:19 | 6:51/mi
21M
2:18:21
Rank: #3161 (+42)
20M → 21M
7:10 | 7:10/mi
35K· 21.75 mi
2:23:23
Rank: #3163 (-2)
21M → 35K
5:02 | 6:44/mi
23M
2:32:05
Rank: #3127 (+36)
35K → 23M
8:42 | 6:57/mi
24M
2:38:55
Rank: #3107 (+20)
23M → 24M
6:50 | 6:50/mi
40K· 24.85 mi
2:45:02
Rank: #3129 (-22)
24M → 40K
6:07 | 7:09/mi
25.2M
2:47:48
Rank: #3153 (-24)
40K → 25.2M
2:46 | 8:01/mi
Finish· 26.22 mi
2:54:55
Rank: #3224 (-71)
25.2M → Finish
7:07 | 6:59/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:25:13
Pace6:30 /mi
2nd Half
Distance13.11 mi
Time1:29:42
Pace6:51 /mi
📊Positive Split: 5.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:5720:246:3420:24
6:34
-
10K
6.21 mi10:45:2240:496:3420:25
6:34
0:00
15K
9.32 mi11:05:121:00:396:3019:50
6:23
-0:11
20K
12.43 mi11:25:231:20:506:3020:11
6:30
+0:07
Half
13.11 mi11:29:461:25:136:304:23
6:25
-0:05
25K
15.53 mi11:45:301:40:576:3015:44
6:29
+0:04
30K
18.64 mi12:06:252:01:526:3220:55
6:44
+0:15
20M
20.00 mi12:15:442:11:116:349:19
6:51
+0:07
21M
21.00 mi12:22:542:18:216:357:10
7:10
+0:19
35K
21.75 mi12:27:562:23:236:365:02
6:44
-0:26
23M
23.00 mi12:36:382:32:056:378:42
6:57
+0:13
24M
24.00 mi12:43:282:38:556:376:50
6:50
-0:07
40K
24.85 mi12:49:352:45:026:386:07
7:09
+0:19
25.2M
25.20 mi12:52:212:47:486:402:46
8:01
+0:52
Finish
26.22 mi12:59:282:54:556:417:07
6:59
-1:02

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

6:23 /mi

Average Pace

6:41 /mi

Slowest Pace

8:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:00:08

34% of race

Time at Steady Pace

1:22:55

47% of race

Time at Slower Pace

31:52

18% of race

Average Pace: 6:40 /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 mi10:24:5720:246:3420:24
6:34
#4296
10K
6.21 mi10:45:2240:496:3420:25
6:34
#4258
15K
9.32 mi11:05:121:00:396:3019:50
6:23
#3741
20K
12.43 mi11:25:231:20:506:3020:11
6:30
#3542
Half
13.11 mi11:29:461:25:136:304:23
6:25
#3509
25K
15.53 mi11:45:301:40:576:3015:44
6:29
#3366
30K
18.64 mi12:06:252:01:526:3220:55
6:44
#3254
20M
20.00 mi12:15:442:11:116:349:19
6:51
#3203
21M
21.00 mi12:22:542:18:216:357:10
7:10
#3161
35K
21.75 mi12:27:562:23:236:365:02
6:44
#3163
23M
23.00 mi12:36:382:32:056:378:42
6:57
#3127
24M
24.00 mi12:43:282:38:556:376:50
6:50
#3107
40K
24.85 mi12:49:352:45:026:386:07
7:09
#3129
25.2M
25.20 mi12:52:212:47:486:402:46
8:01
#3153
Finish
26.22 mi12:59:282:54:556:417:07
6:59
#3224
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4296403740372832(Top 10%)2697(Top 17%)2697(Top 48%)
10K6.21 mi3.10 mi4258+384005+324005+324224(Top 15%)3969(Top 25%)3969(Top 70%)
15K9.32 mi3.11 mi3741+5173535+4703535+4702832(Top 10%)2697(Top 17%)2697(Top 48%)
20K12.43 mi3.11 mi3542+1993355+1803355+1803105(Top 11%)2948(Top 18%)2948(Top 52%)
Half13.11 mi0.68 mi3509+333325+303325+303197(Top 11%)3038(Top 19%)3038(Top 54%)
25K15.53 mi2.42 mi3366+1433199+1263199+1262826(Top 10%)2688(Top 17%)2688(Top 48%)
30K18.64 mi3.11 mi3254+1123084+1153084+1153036(Top 11%)2853(Top 18%)2853(Top 51%)
20M20.00 mi1.36 mi3203+513035+493035+493228(Top 11%)2984(Top 19%)2984(Top 53%)
21M21.00 mi1.00 mi3161+422994+412994+412975(Top 10%)2749(Top 17%)2749(Top 49%)
35K21.75 mi0.75 mi3163-2299429943645(Top 13%)3292(Top 20%)3292(Top 58%)
23M23.00 mi1.25 mi3127+362955+392955+393447(Top 12%)3130(Top 19%)3130(Top 55%)
24M24.00 mi1.00 mi3107+202933+222933+223677(Top 13%)3273(Top 20%)3273(Top 58%)
40K24.85 mi0.85 mi3129-222952-192952-194743(Top 17%)4021(Top 25%)4021(Top 71%)
25.2M25.20 mi0.35 mi3153-242968-162968-165952(Top 21%)4678(Top 29%)4678(Top 83%)
Finish26.22 mi1.02 mi3224-713028-603028-605589(Top 20%)4460(Top 28%)4460(Top 79%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 10%
×21stories
+97ft-345ft

Overall

2832

Males

2697

M18-39

2697

5K→10K

3.1 - 6.2 mi

Top 15%
×5stories
+79ft-138ft

Overall

4224

Males

3969

M18-39

3969

10K→15K

6.2 - 9.3 mi

Top 10%
×3stories
+67ft-78ft

Overall

2832

Males

2697

M18-39

2697

15K→20K

9.3 - 12.4 mi

Top 11%
×5stories
+106ft-86ft

Overall

3105

Males

2948

M18-39

2948

20K→Half

12.4 - 13.1 mi

Top 11%
×2stories
+19ft-37ft

Overall

3197

Males

3038

M18-39

3038

Half→25K

13.1 - 15.5 mi

Top 10%
×4stories
+66ft-88ft

Overall

2826

Males

2688

M18-39

2688

25K→30K

15.5 - 18.6 mi

Top 11%
×9stories
+181ft-148ft

Overall

3036

Males

2853

M18-39

2853

30K→20M

18.6 - 20.0 mi

Top 11%
×5stories
+64ft-50ft

Overall

3228

Males

2984

M18-39

2984

20M→21M

20.0 - 21.0 mi

Top 10%
×8stories
+106ft-24ft

Overall

2975

Males

2749

M18-39

2749

21M→35K

21.0 - 21.8 mi

Top 13%
×7stories
+17ft-86ft

Overall

3645

Males

3292

M18-39

3292

35K→23M

21.8 - 23.0 mi

Top 12%
×5stories
+23ft-63ft

Overall

3447

Males

3130

M18-39

3130

23M→24M

23.0 - 24.0 mi

Top 13%
×6stories
+12ft-82ft

Overall

3677

Males

3273

M18-39

3273

24M→40K

24.0 - 24.9 mi

Top 17%
×1story
+6ft-20ft

Overall

4743

Males

4021

M18-39

4021

40K→25.2M

24.9 - 25.2 mi

Top 21%
×1story
+13ft-16ft

Overall

5952

Males

4678

M18-39

4678

25.2M→Finish

25.2 - 26.2 mi

Top 20%
×2stories
+22ft-21ft

Overall

5589

Males

4460

M18-39

4460

Passing Analysis

Category:
Athletes Passed
1629
Passed By
557
Net Change
+1072
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4296
5K → 10K154116+38#4296#4258
10K → 15K5181+517#4258#3741
15K → 20K21112+199#3741#3542
20K → Half352+33#3542#3509
Half → 25K16017+143#3509#3366
25K → 30K16351+112#3366#3254
30K → 20M7524+51#3254#3203
20M → 21M7432+42#3203#3161
21M → 35K3335-2#3161#3163
35K → 23M7438+36#3163#3127
23M → 24M5838+20#3127#3107
24M → 40K3052-22#3107#3129
40K → 25.2M1842-24#3129#3153
25.2M → Finish2697-71#3153#3224
TOTALS1629557+1072
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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