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BOSTON MARATHON 2025

John Christensen

Bib: 32311•M

IL

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:20
Rank: #21497
Start → 5K
8:48/mi
27:20 split
10K· 6.21 mi
55:36
Rank: #22185 (-688)
5K → 10K
9:06/mi
28:16 split
15K· 9.32 mi
1:22:32
Rank: #21553 (+632)
10K → 15K
8:40/mi
26:56 split
20K· 12.43 mi
1:48:52
Rank: #20722 (+831)
15K → 20K
8:29/mi
26:20 split
Half· 13.11 mi
1:54:43
Rank: #20673 (+49)
20K → Half
8:34/mi
5:51 split
25K· 15.53 mi
2:15:29
Rank: #20183 (+490)
Half → 25K
8:34/mi
20:46 split
30K· 18.64 mi
2:43:39
Rank: #19741 (+442)
25K → 30K
9:04/mi
28:10 split
20M
2:56:23
Rank: #19663 (+78)
30K → 20M
9:22/mi
12:44 split
21M
3:06:17
Rank: #19541 (+122)
20M → 21M
9:54/mi
9:54 split
35K· 21.75 mi
3:13:27
Rank: #19614 (-73)
21M → 35K
9:35/mi
7:10 split
23M
3:25:52
Rank: #19655 (-41)
35K → 23M
9:55/mi
12:25 split
24M
3:35:50
Rank: #19763 (-108)
23M → 24M
9:58/mi
9:58 split
40K· 24.85 mi
3:44:23
Rank: #19808 (-45)
24M → 40K
10:00/mi
8:33 split
25.2M
3:48:01
Rank: #19807 (+1)
40K → 25.2M
10:32/mi
3:38 split
Finish· 26.22 mi
3:56:11
Rank: #19593 (+214)
25.2M → Finish
8:01/mi
8:10 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:54:43
Pace8:45 /mi
2nd Half
Distance13.11 mi
Time2:01:28
Pace9:16 /mi
📊Positive Split: 5.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:56:1027:208:4827:20
8:48
-
10K
6.21 mi12:24:2655:368:5728:16
9:06
+0:18
15K
9.32 mi12:51:221:22:328:5126:56
8:40
-0:26
20K
12.43 mi13:17:421:48:528:4626:20
8:29
-0:11
Half
13.11 mi13:23:331:54:438:455:51
8:34
+0:05
25K
15.53 mi13:44:192:15:298:4320:46
8:34
0:00
30K
18.64 mi14:12:292:43:398:4728:10
9:04
+0:30
20M
20.00 mi14:25:132:56:238:4912:44
9:22
+0:18
21M
21.00 mi14:35:073:06:178:529:54
9:54
+0:32
35K
21.75 mi14:42:173:13:278:547:10
9:35
-0:19
23M
23.00 mi14:54:423:25:528:5712:25
9:55
+0:20
24M
24.00 mi15:04:403:35:509:009:58
9:58
+0:03
40K
24.85 mi15:13:133:44:239:028:33
10:00
+0:02
25.2M
25.20 mi15:16:513:48:019:033:38
10:32
+0:32
Finish
26.22 mi15:25:013:56:119:018:10
8:01
-2:31

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

8:01 /mi

Average Pace

9:01 /mi

Slowest Pace

10:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:28:03

37% of race

Time at Steady Pace

1:36:30

41% of race

Time at Slower Pace

51:38

22% of race

Average Pace: 9:00 /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 mi11:56:1027:208:4827:20
8:48
#21497
10K
6.21 mi12:24:2655:368:5728:16
9:06
#22185
15K
9.32 mi12:51:221:22:328:5126:56
8:40
#21553
20K
12.43 mi13:17:421:48:528:4626:20
8:29
#20722
Half
13.11 mi13:23:331:54:438:455:51
8:34
#20673
25K
15.53 mi13:44:192:15:298:4320:46
8:34
#20183
30K
18.64 mi14:12:292:43:398:4728:10
9:04
#19741
20M
20.00 mi14:25:132:56:238:4912:44
9:22
#19663
21M
21.00 mi14:35:073:06:178:529:54
9:54
#19541
35K
21.75 mi14:42:173:13:278:547:10
9:35
#19614
23M
23.00 mi14:54:423:25:528:5712:25
9:55
#19655
24M
24.00 mi15:04:403:35:509:009:58
9:58
#19763
40K
24.85 mi15:13:133:44:239:028:33
10:00
#19808
25.2M
25.20 mi15:16:513:48:019:033:38
10:32
#19807
Finish
26.22 mi15:25:013:56:119:018:10
8:01
#19593
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi21497130741307420285(Top 71%)12641(Top 78%)12641(Top 224%)
10K6.21 mi3.10 mi22185-68813406-33213406-33222802(Top 80%)13714(Top 85%)13714(Top 243%)
15K9.32 mi3.11 mi21553+63213158+24813158+24820285(Top 71%)12641(Top 78%)12641(Top 224%)
20K12.43 mi3.11 mi20722+83112780+37812780+37818058(Top 64%)11634(Top 72%)11634(Top 206%)
Half13.11 mi0.68 mi20673+4912757+2312757+2319612(Top 69%)12288(Top 76%)12288(Top 218%)
25K15.53 mi2.42 mi20183+49012535+22212535+22217605(Top 62%)11358(Top 71%)11358(Top 201%)
30K18.64 mi3.11 mi19741+44212308+22712308+22718005(Top 63%)11385(Top 71%)11385(Top 202%)
20M20.00 mi1.36 mi19663+7812253+5512253+5518610(Top 66%)11505(Top 71%)11505(Top 204%)
21M21.00 mi1.00 mi19541+12212178+7512178+7517894(Top 63%)11115(Top 69%)11115(Top 197%)
35K21.75 mi0.75 mi19614-7312190-1212190-1220585(Top 72%)12244(Top 76%)12244(Top 217%)
23M23.00 mi1.25 mi19655-4112172+1812172+1820222(Top 71%)12011(Top 75%)12011(Top 213%)
24M24.00 mi1.00 mi19763-10812195-2312195-2321250(Top 75%)12466(Top 77%)12466(Top 221%)
40K24.85 mi0.85 mi19808-4512194+112194+120454(Top 72%)12019(Top 75%)12019(Top 213%)
25.2M25.20 mi0.35 mi19807+112191+312191+319107(Top 67%)11365(Top 71%)11365(Top 201%)
Finish26.22 mi1.02 mi19593+21412076+11512076+11512973(Top 46%)8526(Top 53%)8526(Top 151%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21story building
+97ft-345ft

Overall

20285

Males

12641

M18-39

12641

5K→10K

3.1 - 6.2 mi

Top 80%
×5story building
+79ft-138ft

Overall

22802

Males

13714

M18-39

13714

10K→15K

6.2 - 9.3 mi

Top 71%
×3story building
+67ft-78ft

Overall

20285

Males

12641

M18-39

12641

15K→20K

9.3 - 12.4 mi

Top 64%
×5story building
+106ft-86ft

Overall

18058

Males

11634

M18-39

11634

20K→Half

12.4 - 13.1 mi

Top 69%
×2story building
+19ft-37ft

Overall

19612

Males

12288

M18-39

12288

Half→25K

13.1 - 15.5 mi

Top 62%
×4story building
+66ft-88ft

Overall

17605

Males

11358

M18-39

11358

25K→30K

15.5 - 18.6 mi

Top 63%
×9story building
+181ft-148ft

Overall

18005

Males

11385

M18-39

11385

30K→20M

18.6 - 20.0 mi

Top 66%
×5story building
+64ft-50ft

Overall

18610

Males

11505

M18-39

11505

20M→21M

20.0 - 21.0 mi

Top 63%
×8story building
+106ft-24ft

Overall

17894

Males

11115

M18-39

11115

21M→35K

21.0 - 21.8 mi

Top 72%
×7story building
+17ft-86ft

Overall

20585

Males

12244

M18-39

12244

35K→23M

21.8 - 23.0 mi

Top 71%
×5story building
+23ft-63ft

Overall

20222

Males

12011

M18-39

12011

23M→24M

23.0 - 24.0 mi

Top 75%
×6story building
+12ft-82ft

Overall

21250

Males

12466

M18-39

12466

24M→40K

24.0 - 24.9 mi

Top 72%
×1story
+6ft-20ft

Overall

20454

Males

12019

M18-39

12019

40K→25.2M

24.9 - 25.2 mi

Top 67%
×1story
+13ft-16ft

Overall

19107

Males

11365

M18-39

11365

25.2M→Finish

25.2 - 26.2 mi

Top 46%
×2story building
+22ft-21ft

Overall

12973

Males

8526

M18-39

8526

Passing Analysis

Category:
Athletes Passed
3317
Passed By
1413
Net Change
+1904
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21497
5K → 10K69757-688#21497#22185
10K → 15K64715+632#22185#21553
15K → 20K8354+831#21553#20722
20K → Half589+49#20722#20673
Half → 25K4933+490#20673#20183
25K → 30K48442+442#20183#19741
30K → 20M13153+78#19741#19663
20M → 21M16442+122#19663#19541
21M → 35K31104-73#19541#19614
35K → 23M73114-41#19614#19655
23M → 24M42150-108#19655#19763
24M → 40K4792-45#19763#19808
40K → 25.2M2726+1#19808#19807
25.2M → Finish2162+214#19807#19593
TOTALS33171413+1904
📊

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