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BOSTON MARATHON 2025

Jack Donleavy

Bib: 31820•M

MA

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

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
8:45/mi
27:10
↑ 97↓ 3451.5%
10K· 6.21 mi
8:39/mi
54:03
↑ 79↓ 1380.4%
15K· 9.32 mi
8:10/mi
1:19:25
↑ 67↓ 78
20K· 12.43 mi
8:09/mi
1:44:45
↑ 106↓ 860.1%
Half· 13.11 mi
8:08/mi
1:50:18
↑ 19↓ 370.5%
25K· 15.53 mi
8:35/mi
2:11:06
↑ 66↓ 880.2%
30K· 18.64 mi
9:15/mi
2:39:51
↑ 181↓ 1480.2%
20M
9:27/mi
2:52:42
↑ 64↓ 500.2%
21M
10:07/mi
3:02:49
↑ 106↓ 241.6%
35K· 21.75 mi
8:47/mi
3:09:23
↑ 17↓ 861.7%
23M
9:53/mi
3:21:45
↑ 23↓ 630.6%
24M
9:16/mi
3:31:01
↓ 821.3%
40K· 24.85 mi
9:58/mi
3:39:32
↓ 200.3%
25.2M
10:50/mi
3:43:16
↑ 13↓ 160.2%
Finish· 26.22 mi
8:50/mi
3:52:16
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:50:18
Pace8:25 /mi
2nd Half
Distance13.11 mi
Time2:01:58
Pace9:18 /mi
📊Positive Split: 10.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:0927:108:4527:10
8:45
-
10K
6.21 mi12:16:0254:038:4226:53
8:39
-0:06
15K
9.32 mi12:41:241:19:258:3125:22
8:10
-0:29
20K
12.43 mi13:06:441:44:458:2625:20
8:09
-0:01
Half
13.11 mi13:12:171:50:188:255:33
8:08
-0:01
25K
15.53 mi13:33:052:11:068:2620:48
8:35
+0:27
30K
18.64 mi14:01:502:39:518:3528:45
9:15
+0:40
20M
20.00 mi14:14:412:52:428:3812:51
9:27
+0:12
21M
21.00 mi14:24:483:02:498:4210:07
10:07
+0:40
35K
21.75 mi14:31:223:09:238:426:34
8:47
-1:20
23M
23.00 mi14:43:443:21:458:4612:22
9:53
+1:06
24M
24.00 mi14:53:003:31:018:489:16
9:16
-0:37
40K
24.85 mi15:01:313:39:328:508:31
9:58
+0:42
25.2M
25.20 mi15:05:153:43:168:523:44
10:50
+0:52
Finish
26.22 mi15:14:153:52:168:529:00
8:50
-2:00

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

8:08 /mi

Average Pace

8:52 /mi

Slowest Pace

10:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

56:15

24% of race

Time at Steady Pace

1:30:25

39% of race

Time at Slower Pace

1:25:36

37% of race

Average Pace: 8:52 /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 mi11:49:0927:108:4527:10
8:45
#21209
10K
6.21 mi12:16:0254:038:4226:53
8:39
#20902
15K
9.32 mi12:41:241:19:258:3125:22
8:10
#19795
20K
12.43 mi13:06:441:44:458:2625:20
8:09
#18821
Half
13.11 mi13:12:171:50:188:255:33
8:08
#18725
25K
15.53 mi13:33:052:11:068:2620:48
8:35
#18529
30K
18.64 mi14:01:502:39:518:3528:45
9:15
#18606
20M
20.00 mi14:14:412:52:428:3812:51
9:27
#18627
21M
21.00 mi14:24:483:02:498:4210:07
10:07
#18645
35K
21.75 mi14:31:223:09:238:426:34
8:47
#18597
23M
23.00 mi14:43:443:21:458:4612:22
9:53
#18708
24M
24.00 mi14:53:003:31:018:489:16
9:16
#18723
40K
24.85 mi15:01:313:39:328:508:31
9:58
#18807
25.2M
25.20 mi15:05:153:43:168:523:44
10:50
#18829
Finish
26.22 mi15:14:153:52:168:529:00
8:50
#18795
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi21209129481294817165(Top 60%)11290(Top 70%)11290(Top 200%)
10K6.21 mi3.10 mi20902+30712843+10512843+10520610(Top 73%)12743(Top 79%)12743(Top 226%)
15K9.32 mi3.11 mi19795+110712392+45112392+45117165(Top 60%)11290(Top 70%)11290(Top 200%)
20K12.43 mi3.11 mi18821+97411963+42911963+42916013(Top 56%)10753(Top 67%)10753(Top 191%)
Half13.11 mi0.68 mi18725+9611925+3811925+3816837(Top 59%)11132(Top 69%)11132(Top 197%)
25K15.53 mi2.42 mi18529+19611820+10511820+10517670(Top 62%)11393(Top 71%)11393(Top 202%)
30K18.64 mi3.11 mi18606-7711832-1211832-1218907(Top 67%)11790(Top 73%)11790(Top 209%)
20M20.00 mi1.36 mi18627-2111814+1811814+1818962(Top 67%)11672(Top 72%)11672(Top 207%)
21M21.00 mi1.00 mi18645-1811790+2411790+2418716(Top 66%)11480(Top 71%)11480(Top 203%)
35K21.75 mi0.75 mi18597+4811753+3711753+3717119(Top 60%)10667(Top 66%)10667(Top 189%)
23M23.00 mi1.25 mi18708-11111768-1511768-1520055(Top 71%)11923(Top 74%)11923(Top 211%)
24M24.00 mi1.00 mi18723-1511753+1511753+1518645(Top 66%)11235(Top 70%)11235(Top 199%)
40K24.85 mi0.85 mi18807-8411761-811761-820325(Top 72%)11945(Top 74%)11945(Top 212%)
25.2M25.20 mi0.35 mi18829-2211763-211763-220080(Top 71%)11822(Top 73%)11822(Top 210%)
Finish26.22 mi1.02 mi18795+3411726+3711726+3718200(Top 64%)10973(Top 68%)10973(Top 194%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 60%
×21story building
+97ft-345ft

Overall

17165

Males

11290

M18-39

11290

5K→10K

3.1 - 6.2 mi

Top 73%
×5story building
+79ft-138ft

Overall

20610

Males

12743

M18-39

12743

10K→15K

6.2 - 9.3 mi

Top 60%
×3story building
+67ft-78ft

Overall

17165

Males

11290

M18-39

11290

15K→20K

9.3 - 12.4 mi

Top 56%
×5story building
+106ft-86ft

Overall

16013

Males

10753

M18-39

10753

20K→Half

12.4 - 13.1 mi

Top 59%
×2story building
+19ft-37ft

Overall

16837

Males

11132

M18-39

11132

Half→25K

13.1 - 15.5 mi

Top 62%
×4story building
+66ft-88ft

Overall

17670

Males

11393

M18-39

11393

25K→30K

15.5 - 18.6 mi

Top 67%
×9story building
+181ft-148ft

Overall

18907

Males

11790

M18-39

11790

30K→20M

18.6 - 20.0 mi

Top 67%
×5story building
+64ft-50ft

Overall

18962

Males

11672

M18-39

11672

20M→21M

20.0 - 21.0 mi

Top 66%
×8story building
+106ft-24ft

Overall

18716

Males

11480

M18-39

11480

21M→35K

21.0 - 21.8 mi

Top 60%
×7story building
+17ft-86ft

Overall

17119

Males

10667

M18-39

10667

35K→23M

21.8 - 23.0 mi

Top 71%
×5story building
+23ft-63ft

Overall

20055

Males

11923

M18-39

11923

23M→24M

23.0 - 24.0 mi

Top 66%
×6story building
+12ft-82ft

Overall

18645

Males

11235

M18-39

11235

24M→40K

24.0 - 24.9 mi

Top 72%
×1story
+6ft-20ft

Overall

20325

Males

11945

M18-39

11945

40K→25.2M

24.9 - 25.2 mi

Top 71%
×1story
+13ft-16ft

Overall

20080

Males

11822

M18-39

11822

25.2M→Finish

25.2 - 26.2 mi

Top 64%
×2story building
+22ft-21ft

Overall

18200

Males

10973

M18-39

10973

Passing Analysis

Category:
Athletes Passed
3706
Passed By
1292
Net Change
+2414
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21209
5K → 10K473166+307#21209#20902
10K → 15K11092+1107#20902#19795
15K → 20K9784+974#19795#18821
20K → Half1048+96#18821#18725
Half → 25K25256+196#18725#18529
25K → 30K220297-77#18529#18606
30K → 20M100121-21#18606#18627
20M → 21M97115-18#18627#18645
21M → 35K7830+48#18645#18597
35K → 23M82193-111#18597#18708
23M → 24M6378-15#18708#18723
24M → 40K51135-84#18723#18807
40K → 25.2M1739-22#18807#18829
25.2M → Finish8248+34#18829#18795
TOTALS37061292+2414
📊

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