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BOSTON MARATHON 2025

John Crosslin

Bib: 14147•M

TN

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 44%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Top 47%
Division (M50-54)
#0 / 1996
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
7:43/mi
23:58
↑ 97↓ 3451.5%
10K· 6.21 mi
7:45/mi
48:04
↑ 79↓ 1380.4%
15K· 9.32 mi
7:42/mi
1:11:58
↑ 67↓ 78
20K· 12.43 mi
7:48/mi
1:36:12
↑ 106↓ 860.1%
Half· 13.11 mi
7:53/mi
1:41:35
↑ 19↓ 370.5%
25K· 15.53 mi
8:01/mi
2:01:02
↑ 66↓ 880.2%
30K· 18.64 mi
8:23/mi
2:27:04
↑ 181↓ 1480.2%
20M
8:08/mi
2:38:07
↑ 64↓ 500.2%
21M
8:24/mi
2:46:31
↑ 106↓ 241.6%
35K· 21.75 mi
7:45/mi
2:52:19
↑ 17↓ 861.7%
23M
7:46/mi
3:02:02
↑ 23↓ 630.6%
24M
7:50/mi
3:09:52
↓ 821.3%
40K· 24.85 mi
8:01/mi
3:16:43
↓ 200.3%
25.2M
8:48/mi
3:19:45
↑ 13↓ 160.2%
Finish· 26.22 mi
7:51/mi
3:27:45
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:35
Pace7:45 /mi
2nd Half
Distance13.11 mi
Time1:46:10
Pace8:06 /mi
📊Positive Split: 4.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:1123:587:4323:58
7:43
-
10K
6.21 mi11:18:1748:047:4424:06
7:45
+0:02
15K
9.32 mi11:42:111:11:587:4323:54
7:42
-0:03
20K
12.43 mi12:06:251:36:127:4424:14
7:48
+0:06
Half
13.11 mi12:11:481:41:357:455:23
7:53
+0:05
25K
15.53 mi12:31:152:01:027:4719:27
8:01
+0:08
30K
18.64 mi12:57:172:27:047:5326:02
8:23
+0:22
20M
20.00 mi13:08:202:38:077:5411:03
8:08
-0:15
21M
21.00 mi13:16:442:46:317:568:24
8:24
+0:16
35K
21.75 mi13:22:322:52:197:555:48
7:45
-0:39
23M
23.00 mi13:32:153:02:027:559:43
7:46
+0:01
24M
24.00 mi13:40:053:09:527:557:50
7:50
+0:04
40K
24.85 mi13:46:563:16:437:556:51
8:01
+0:11
25.2M
25.20 mi13:49:583:19:457:563:02
8:48
+0:47
Finish
26.22 mi13:57:583:27:457:568:00
7:51
-0:57

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

7:42 /mi

Average Pace

7:56 /mi

Slowest Pace

8:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:24:43

99% of race

Time at Steady Pace

3:02

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:55 /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 mi10:54:1123:587:4323:58
7:43
#14079
10K
6.21 mi11:18:1748:047:4424:06
7:45
#14190
15K
9.32 mi11:42:111:11:587:4323:54
7:42
#13930
20K
12.43 mi12:06:251:36:127:4424:14
7:48
#13724
Half
13.11 mi12:11:481:41:357:455:23
7:53
#13777
25K
15.53 mi12:31:152:01:027:4719:27
8:01
#13818
30K
18.64 mi12:57:172:27:047:5326:02
8:23
#13791
20M
20.00 mi13:08:202:38:077:5411:03
8:08
#13560
21M
21.00 mi13:16:442:46:317:568:24
8:24
#13311
35K
21.75 mi13:22:322:52:197:555:48
7:45
#13193
23M
23.00 mi13:32:153:02:027:559:43
7:46
#12877
24M
24.00 mi13:40:053:09:527:557:50
7:50
#12717
40K
24.85 mi13:46:563:16:437:556:51
8:01
#12616
25.2M
25.20 mi13:49:583:19:457:563:02
8:48
#12557
Finish
26.22 mi13:57:583:27:457:568:00
7:51
#12511
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi14079100771007713415(Top 47%)9685(Top 60%)9685(Top 485%)
10K6.21 mi3.10 mi14190-11110095-1810095-1814380(Top 51%)10155(Top 63%)10155(Top 509%)
15K9.32 mi3.11 mi13930+2609959+1369959+13613415(Top 47%)9685(Top 60%)9685(Top 485%)
20K12.43 mi3.11 mi13724+2069829+1309829+13013257(Top 47%)9532(Top 59%)9532(Top 478%)
Half13.11 mi0.68 mi13777-539844-159844-1514920(Top 53%)10283(Top 64%)10283(Top 515%)
25K15.53 mi2.42 mi13818-419837+79837+714038(Top 49%)9767(Top 61%)9767(Top 489%)
30K18.64 mi3.11 mi13791+279763+749763+7414005(Top 49%)9595(Top 60%)9595(Top 481%)
20M20.00 mi1.36 mi13560+2319638+1259638+12511326(Top 40%)8205(Top 51%)8205(Top 411%)
21M21.00 mi1.00 mi13311+2499490+1489490+1489840(Top 35%)7284(Top 45%)7284(Top 365%)
35K21.75 mi0.75 mi13193+1189423+679423+6710452(Top 37%)7606(Top 47%)7606(Top 381%)
23M23.00 mi1.25 mi12877+3169247+1769247+1768314(Top 29%)6349(Top 39%)6349(Top 318%)
24M24.00 mi1.00 mi12717+1609146+1019146+10110047(Top 35%)7196(Top 45%)7196(Top 361%)
40K24.85 mi0.85 mi12616+1019070+769070+7610289(Top 36%)7202(Top 45%)7202(Top 361%)
25.2M25.20 mi0.35 mi12557+599020+509020+5010582(Top 37%)7274(Top 45%)7274(Top 364%)
Finish26.22 mi1.02 mi12511+468970+508970+5011801(Top 42%)7939(Top 49%)7939(Top 398%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 47%
×21story building
+97ft-345ft

Overall

13415

Males

9685

M50-54

9685

5K→10K

3.1 - 6.2 mi

Top 51%
×5story building
+79ft-138ft

Overall

14380

Males

10155

M50-54

10155

10K→15K

6.2 - 9.3 mi

Top 47%
×3story building
+67ft-78ft

Overall

13415

Males

9685

M50-54

9685

15K→20K

9.3 - 12.4 mi

Top 47%
×5story building
+106ft-86ft

Overall

13257

Males

9532

M50-54

9532

20K→Half

12.4 - 13.1 mi

Top 53%
×2story building
+19ft-37ft

Overall

14920

Males

10283

M50-54

10283

Half→25K

13.1 - 15.5 mi

Top 49%
×4story building
+66ft-88ft

Overall

14038

Males

9767

M50-54

9767

25K→30K

15.5 - 18.6 mi

Top 49%
×9story building
+181ft-148ft

Overall

14005

Males

9595

M50-54

9595

30K→20M

18.6 - 20.0 mi

Top 40%
×5story building
+64ft-50ft

Overall

11326

Males

8205

M50-54

8205

20M→21M

20.0 - 21.0 mi

Top 35%
×8story building
+106ft-24ft

Overall

9840

Males

7284

M50-54

7284

21M→35K

21.0 - 21.8 mi

Top 37%
×7story building
+17ft-86ft

Overall

10452

Males

7606

M50-54

7606

35K→23M

21.8 - 23.0 mi

Top 29%
×5story building
+23ft-63ft

Overall

8314

Males

6349

M50-54

6349

23M→24M

23.0 - 24.0 mi

Top 35%
×6story building
+12ft-82ft

Overall

10047

Males

7196

M50-54

7196

24M→40K

24.0 - 24.9 mi

Top 36%
×1story
+6ft-20ft

Overall

10289

Males

7202

M50-54

7202

40K→25.2M

24.9 - 25.2 mi

Top 37%
×1story
+13ft-16ft

Overall

10582

Males

7274

M50-54

7274

25.2M→Finish

25.2 - 26.2 mi

Top 42%
×2story building
+22ft-21ft

Overall

11801

Males

7939

M50-54

7939

Passing Analysis

Category:
Athletes Passed
2733
Passed By
1165
Net Change
+1568
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14079
5K → 10K216327-111#14079#14190
10K → 15K33979+260#14190#13930
15K → 20K316110+206#13930#13724
20K → Half1871-53#13724#13777
Half → 25K168209-41#13777#13818
25K → 30K255228+27#13818#13791
30K → 20M25322+231#13791#13560
20M → 21M2545+249#13560#13311
21M → 35K1279+118#13311#13193
35K → 23M3204+316#13193#12877
23M → 24M17515+160#12877#12717
24M → 40K13231+101#12717#12616
40K → 25.2M6910+59#12616#12557
25.2M → Finish9145+46#12557#12511
TOTALS27331165+1568
📊

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