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BOSTON MARATHON 2025

Tim Giarrusso

Bib: 27863•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
7:57/mi
24:41
↑ 97↓ 3451.5%
10K· 6.21 mi
7:52/mi
49:08
↑ 79↓ 1380.4%
15K· 9.32 mi
7:54/mi
1:13:42
↑ 67↓ 78
20K· 12.43 mi
7:58/mi
1:38:28
↑ 106↓ 860.1%
Half· 13.11 mi
8:04/mi
1:43:58
↑ 19↓ 370.5%
25K· 15.53 mi
8:14/mi
2:03:56
↑ 66↓ 880.2%
30K· 18.64 mi
8:46/mi
2:31:10
↑ 181↓ 1480.2%
20M
8:55/mi
2:43:17
↑ 64↓ 500.2%
21M
9:01/mi
2:52:18
↑ 106↓ 241.6%
35K· 21.75 mi
8:31/mi
2:58:40
↑ 17↓ 861.7%
23M
9:13/mi
3:10:12
↑ 23↓ 630.6%
24M
9:35/mi
3:19:47
↓ 821.3%
40K· 24.85 mi
9:39/mi
3:28:02
↓ 200.3%
25.2M
10:23/mi
3:31:37
↑ 13↓ 160.2%
Finish· 26.22 mi
8:49/mi
3:40:36
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:58
Pace7:56 /mi
2nd Half
Distance13.11 mi
Time1:56:38
Pace8:54 /mi
📊Positive Split: 12.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:41:2924:417:5724:41
7:57
-
10K
6.21 mi12:05:5649:087:5424:27
7:52
-0:05
15K
9.32 mi12:30:301:13:427:5424:34
7:54
+0:02
20K
12.43 mi12:55:161:38:287:5524:46
7:58
+0:04
Half
13.11 mi13:00:461:43:587:565:30
8:04
+0:06
25K
15.53 mi13:20:442:03:567:5919:58
8:14
+0:10
30K
18.64 mi13:47:582:31:108:0727:14
8:46
+0:32
20M
20.00 mi14:00:052:43:178:1012:07
8:55
+0:09
21M
21.00 mi14:09:062:52:188:129:01
9:01
+0:06
35K
21.75 mi14:15:282:58:408:136:22
8:31
-0:30
23M
23.00 mi14:27:003:10:128:1611:32
9:13
+0:42
24M
24.00 mi14:36:353:19:478:199:35
9:35
+0:22
40K
24.85 mi14:44:503:28:028:228:15
9:39
+0:04
25.2M
25.20 mi14:48:253:31:378:243:35
10:23
+0:44
Finish
26.22 mi14:57:243:40:368:258:59
8:49
-1:34

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

7:52 /mi

Average Pace

8:25 /mi

Slowest Pace

10:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:03:56

56% of race

Time at Steady Pace

1:03:43

29% of race

Time at Slower Pace

32:57

15% of race

Average Pace: 8:25 /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 mi11:41:2924:417:5724:41
7:57
#16133
10K
6.21 mi12:05:5649:087:5424:27
7:52
#15743
15K
9.32 mi12:30:301:13:427:5424:34
7:54
#15550
20K
12.43 mi12:55:161:38:287:5524:46
7:58
#15305
Half
13.11 mi13:00:461:43:587:565:30
8:04
#15358
25K
15.53 mi13:20:442:03:567:5919:58
8:14
#15382
30K
18.64 mi13:47:582:31:108:0727:14
8:46
#15586
20M
20.00 mi14:00:052:43:178:1012:07
8:55
#15585
21M
21.00 mi14:09:062:52:188:129:01
9:01
#15430
35K
21.75 mi14:15:282:58:408:136:22
8:31
#15420
23M
23.00 mi14:27:003:10:128:1611:32
9:13
#15510
24M
24.00 mi14:36:353:19:478:199:35
9:35
#15714
40K
24.85 mi14:44:503:28:028:228:15
9:39
#15875
25.2M
25.20 mi14:48:253:31:378:243:35
10:23
#15930
Finish
26.22 mi14:57:243:40:368:258:59
8:49
#16018
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi16133108661086615285(Top 54%)10499(Top 65%)10499(Top 186%)
10K6.21 mi3.10 mi15743+39010710+15610710+15615428(Top 54%)10590(Top 66%)10590(Top 188%)
15K9.32 mi3.11 mi15550+19310631+7910631+7915285(Top 54%)10499(Top 65%)10499(Top 186%)
20K12.43 mi3.11 mi15305+24510506+12510506+12514707(Top 52%)10182(Top 63%)10182(Top 180%)
Half13.11 mi0.68 mi15358-5310529-2310529-2316325(Top 57%)10901(Top 68%)10901(Top 193%)
25K15.53 mi2.42 mi15382-2410514+1510514+1515518(Top 55%)10443(Top 65%)10443(Top 185%)
30K18.64 mi3.11 mi15586-20410551-3710551-3716382(Top 58%)10658(Top 66%)10658(Top 189%)
20M20.00 mi1.36 mi15585+110517+3410517+3416324(Top 57%)10496(Top 65%)10496(Top 186%)
21M21.00 mi1.00 mi15430+15510416+10110416+10113610(Top 48%)9166(Top 57%)9166(Top 162%)
35K21.75 mi0.75 mi15420+1010391+2510391+2515514(Top 55%)9945(Top 62%)9945(Top 176%)
23M23.00 mi1.25 mi15510-9010392-110392-117367(Top 61%)10677(Top 66%)10677(Top 189%)
24M24.00 mi1.00 mi15714-20410455-6310455-6319904(Top 70%)11821(Top 73%)11821(Top 210%)
40K24.85 mi0.85 mi15875-16110504-4910504-4919251(Top 68%)11437(Top 71%)11437(Top 203%)
25.2M25.20 mi0.35 mi15930-5510509-510509-518563(Top 65%)11095(Top 69%)11095(Top 197%)
Finish26.22 mi1.02 mi16018-8810536-2710536-2718110(Top 64%)10917(Top 68%)10917(Top 193%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21story building
+97ft-345ft

Overall

15285

Males

10499

M18-39

10499

5K→10K

3.1 - 6.2 mi

Top 54%
×5story building
+79ft-138ft

Overall

15428

Males

10590

M18-39

10590

10K→15K

6.2 - 9.3 mi

Top 54%
×3story building
+67ft-78ft

Overall

15285

Males

10499

M18-39

10499

15K→20K

9.3 - 12.4 mi

Top 52%
×5story building
+106ft-86ft

Overall

14707

Males

10182

M18-39

10182

20K→Half

12.4 - 13.1 mi

Top 57%
×2story building
+19ft-37ft

Overall

16325

Males

10901

M18-39

10901

Half→25K

13.1 - 15.5 mi

Top 55%
×4story building
+66ft-88ft

Overall

15518

Males

10443

M18-39

10443

25K→30K

15.5 - 18.6 mi

Top 58%
×9story building
+181ft-148ft

Overall

16382

Males

10658

M18-39

10658

30K→20M

18.6 - 20.0 mi

Top 57%
×5story building
+64ft-50ft

Overall

16324

Males

10496

M18-39

10496

20M→21M

20.0 - 21.0 mi

Top 48%
×8story building
+106ft-24ft

Overall

13610

Males

9166

M18-39

9166

21M→35K

21.0 - 21.8 mi

Top 55%
×7story building
+17ft-86ft

Overall

15514

Males

9945

M18-39

9945

35K→23M

21.8 - 23.0 mi

Top 61%
×5story building
+23ft-63ft

Overall

17367

Males

10677

M18-39

10677

23M→24M

23.0 - 24.0 mi

Top 70%
×6story building
+12ft-82ft

Overall

19904

Males

11821

M18-39

11821

24M→40K

24.0 - 24.9 mi

Top 68%
×1story
+6ft-20ft

Overall

19251

Males

11437

M18-39

11437

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1story
+13ft-16ft

Overall

18563

Males

11095

M18-39

11095

25.2M→Finish

25.2 - 26.2 mi

Top 64%
×2story building
+22ft-21ft

Overall

18110

Males

10917

M18-39

10917

Passing Analysis

Category:
Athletes Passed
2116
Passed By
2001
Net Change
+115
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16133
5K → 10K532142+390#16133#15743
10K → 15K307114+193#15743#15550
15K → 20K32479+245#15550#15305
20K → Half2477-53#15305#15358
Half → 25K170194-24#15358#15382
25K → 30K181385-204#15382#15586
30K → 20M116115+1#15586#15585
20M → 21M19540+155#15585#15430
21M → 35K6454+10#15430#15420
35K → 23M84174-90#15420#15510
23M → 24M27231-204#15510#15714
24M → 40K35196-161#15714#15875
40K → 25.2M1974-55#15875#15930
25.2M → Finish38126-88#15930#16018
TOTALS21162001+115
📊

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