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BOSTON MARATHON 2025

Ivar Adolfsson

Bib: 22566•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M60-64)
#0 / 1259
Top 49%
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
8:07/mi
25:12
↑ 97↓ 3451.5%
10K· 6.21 mi
8:13/mi
50:44
↑ 79↓ 1380.4%
15K· 9.32 mi
8:26/mi
1:16:55
↑ 67↓ 78
20K· 12.43 mi
8:34/mi
1:43:33
↑ 106↓ 860.1%
Half· 13.11 mi
8:30/mi
1:49:21
↑ 19↓ 370.5%
25K· 15.53 mi
8:42/mi
2:10:27
↑ 66↓ 880.2%
30K· 18.64 mi
9:10/mi
2:38:56
↑ 181↓ 1480.2%
20M
9:19/mi
2:51:36
↑ 64↓ 500.2%
21M
10:12/mi
3:01:48
↑ 106↓ 241.6%
35K· 21.75 mi
8:57/mi
3:08:30
↑ 17↓ 861.7%
23M
9:03/mi
3:19:50
↑ 23↓ 630.6%
24M
9:12/mi
3:29:02
↓ 821.3%
40K· 24.85 mi
9:20/mi
3:37:01
↓ 200.3%
25.2M
10:38/mi
3:40:41
↑ 13↓ 160.2%
Finish· 26.22 mi
9:21/mi
3:50:13
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:49:21
Pace8:20 /mi
2nd Half
Distance13.11 mi
Time2:00:52
Pace9:13 /mi
📊Positive Split: 10.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:1325:128:0725:12
8:07
-
10K
6.21 mi11:46:4550:448:1025:32
8:13
+0:06
15K
9.32 mi12:12:561:16:558:1526:11
8:26
+0:13
20K
12.43 mi12:39:341:43:338:2026:38
8:34
+0:08
Half
13.11 mi12:45:221:49:218:205:48
8:30
-0:04
25K
15.53 mi13:06:282:10:278:2421:06
8:42
+0:12
30K
18.64 mi13:34:572:38:568:3228:29
9:10
+0:28
20M
20.00 mi13:47:372:51:368:3512:40
9:19
+0:09
21M
21.00 mi13:57:493:01:488:3910:12
10:12
+0:53
35K
21.75 mi14:04:313:08:308:406:42
8:57
-1:15
23M
23.00 mi14:15:513:19:508:4111:20
9:03
+0:06
24M
24.00 mi14:25:033:29:028:439:12
9:12
+0:09
40K
24.85 mi14:33:023:37:018:447:59
9:20
+0:08
25.2M
25.20 mi14:36:423:40:418:453:40
10:38
+1:18
Finish
26.22 mi14:46:143:50:138:479:32
9:21
-1:17

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

8:07 /mi

Average Pace

8:47 /mi

Slowest Pace

10:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:10:27

57% of race

Time at Steady Pace

1:25:54

37% of race

Time at Slower Pace

13:52

6% of race

Average Pace: 8:47 /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 mi11:21:1325:128:0725:12
8:07
#17425
10K
6.21 mi11:46:4550:448:1025:32
8:13
#17721
15K
9.32 mi12:12:561:16:558:1526:11
8:26
#18119
20K
12.43 mi12:39:341:43:338:2026:38
8:34
#18203
Half
13.11 mi12:45:221:49:218:205:48
8:30
#18237
25K
15.53 mi13:06:282:10:278:2421:06
8:42
#18242
30K
18.64 mi13:34:572:38:568:3228:29
9:10
#18299
20M
20.00 mi13:47:372:51:368:3512:40
9:19
#18302
21M
21.00 mi13:57:493:01:488:3910:12
10:12
#18343
35K
21.75 mi14:04:313:08:308:406:42
8:57
#18336
23M
23.00 mi14:15:513:19:508:4111:20
9:03
#18211
24M
24.00 mi14:25:033:29:028:439:12
9:12
#18214
40K
24.85 mi14:33:023:37:018:447:59
9:20
#18193
25.2M
25.20 mi14:36:423:40:418:453:40
10:38
#18243
Finish
26.22 mi14:46:143:50:138:479:32
9:21
#18363
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi17425113851138518860(Top 66%)11989(Top 74%)11989(Top 952%)
10K6.21 mi3.10 mi17721-29611514-12911514-12918006(Top 63%)11660(Top 72%)11660(Top 926%)
15K9.32 mi3.11 mi18119-39811668-15411668-15418860(Top 66%)11989(Top 74%)11989(Top 952%)
20K12.43 mi3.11 mi18203-8411692-2411692-2418679(Top 66%)11894(Top 74%)11894(Top 945%)
Half13.11 mi0.68 mi18237-3411706-1411706-1419155(Top 67%)12103(Top 75%)12103(Top 961%)
25K15.53 mi2.42 mi18242-511697+911697+918390(Top 65%)11693(Top 73%)11693(Top 929%)
30K18.64 mi3.11 mi18299-5711688+911688+918484(Top 65%)11607(Top 72%)11607(Top 922%)
20M20.00 mi1.36 mi18302-311665+2311665+2318383(Top 65%)11392(Top 71%)11392(Top 905%)
21M21.00 mi1.00 mi18343-4111659+611659+619008(Top 67%)11619(Top 72%)11619(Top 923%)
35K21.75 mi0.75 mi18336+711639+2011639+2017999(Top 63%)11052(Top 69%)11052(Top 878%)
23M23.00 mi1.25 mi18211+12511551+8811551+8816542(Top 58%)10310(Top 64%)10310(Top 819%)
24M24.00 mi1.00 mi18214-311529+2211529+2218340(Top 65%)11079(Top 69%)11079(Top 880%)
40K24.85 mi0.85 mi18193+2111492+3711492+3718002(Top 63%)10828(Top 67%)10828(Top 860%)
25.2M25.20 mi0.35 mi18243-5011505-1311505-1319442(Top 68%)11516(Top 72%)11516(Top 915%)
Finish26.22 mi1.02 mi18363-12011533-2811533-2820599(Top 73%)12100(Top 75%)12100(Top 961%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 66%
×21story building
+97ft-345ft

Overall

18860

Males

11989

M60-64

11989

5K→10K

3.1 - 6.2 mi

Top 63%
×5story building
+79ft-138ft

Overall

18006

Males

11660

M60-64

11660

10K→15K

6.2 - 9.3 mi

Top 66%
×3story building
+67ft-78ft

Overall

18860

Males

11989

M60-64

11989

15K→20K

9.3 - 12.4 mi

Top 66%
×5story building
+106ft-86ft

Overall

18679

Males

11894

M60-64

11894

20K→Half

12.4 - 13.1 mi

Top 67%
×2story building
+19ft-37ft

Overall

19155

Males

12103

M60-64

12103

Half→25K

13.1 - 15.5 mi

Top 65%
×4story building
+66ft-88ft

Overall

18390

Males

11693

M60-64

11693

25K→30K

15.5 - 18.6 mi

Top 65%
×9story building
+181ft-148ft

Overall

18484

Males

11607

M60-64

11607

30K→20M

18.6 - 20.0 mi

Top 65%
×5story building
+64ft-50ft

Overall

18383

Males

11392

M60-64

11392

20M→21M

20.0 - 21.0 mi

Top 67%
×8story building
+106ft-24ft

Overall

19008

Males

11619

M60-64

11619

21M→35K

21.0 - 21.8 mi

Top 63%
×7story building
+17ft-86ft

Overall

17999

Males

11052

M60-64

11052

35K→23M

21.8 - 23.0 mi

Top 58%
×5story building
+23ft-63ft

Overall

16542

Males

10310

M60-64

10310

23M→24M

23.0 - 24.0 mi

Top 65%
×6story building
+12ft-82ft

Overall

18340

Males

11079

M60-64

11079

24M→40K

24.0 - 24.9 mi

Top 63%
×1story
+6ft-20ft

Overall

18002

Males

10828

M60-64

10828

40K→25.2M

24.9 - 25.2 mi

Top 68%
×1story
+13ft-16ft

Overall

19442

Males

11516

M60-64

11516

25.2M→Finish

25.2 - 26.2 mi

Top 73%
×2story building
+22ft-21ft

Overall

20599

Males

12100

M60-64

12100

Passing Analysis

Category:
Athletes Passed
1450
Passed By
2388
Net Change
-938
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17425
5K → 10K168464-296#17425#17721
10K → 15K83481-398#17721#18119
15K → 20K162246-84#18119#18203
20K → Half3367-34#18203#18237
Half → 25K163168-5#18237#18242
25K → 30K227284-57#18242#18299
30K → 20M118121-3#18299#18302
20M → 21M86127-41#18302#18343
21M → 35K6255+7#18343#18336
35K → 23M16136+125#18336#18211
23M → 24M7578-3#18211#18214
24M → 40K7655+21#18214#18193
40K → 25.2M1060-50#18193#18243
25.2M → Finish26146-120#18243#18363
TOTALS14502388-938
📊

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