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BOSTON MARATHON 2025

Ilias Karabatsos

Bib: 31889•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M45-49)
#0 / 2386
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
8:53/mi
27:37
↑ 97↓ 3451.5%
10K· 6.21 mi
8:49/mi
55:00
↑ 79↓ 1380.4%
15K· 9.32 mi
8:50/mi
1:22:26
↑ 67↓ 78
20K· 12.43 mi
8:56/mi
1:50:11
↑ 106↓ 860.1%
Half· 13.11 mi
8:45/mi
1:56:09
↑ 19↓ 370.5%
25K· 15.53 mi
8:56/mi
2:17:49
↑ 66↓ 880.2%
30K· 18.64 mi
9:18/mi
2:46:42
↑ 181↓ 1480.2%
20M
9:45/mi
2:59:57
↑ 64↓ 500.2%
21M
10:18/mi
3:10:15
↑ 106↓ 241.6%
35K· 21.75 mi
9:09/mi
3:17:06
↑ 17↓ 861.7%
23M
9:26/mi
3:28:55
↑ 23↓ 630.6%
24M
9:12/mi
3:38:07
↓ 821.3%
40K· 24.85 mi
9:34/mi
3:46:18
↓ 200.3%
25.2M
10:38/mi
3:49:58
↑ 13↓ 160.2%
Finish· 26.22 mi
9:03/mi
3:59:11
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:56:09
Pace8:52 /mi
2nd Half
Distance13.11 mi
Time2:03:02
Pace9:23 /mi
📊Positive Split: 5.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:1527:378:5327:37
8:53
-
10K
6.21 mi12:17:3855:008:5127:23
8:49
-0:04
15K
9.32 mi12:45:041:22:268:5127:26
8:50
+0:01
20K
12.43 mi13:12:491:50:118:5227:45
8:56
+0:06
Half
13.11 mi13:18:471:56:098:525:58
8:45
-0:11
25K
15.53 mi13:40:272:17:498:5221:40
8:56
+0:11
30K
18.64 mi14:09:202:46:428:5728:53
9:18
+0:22
20M
20.00 mi14:22:352:59:579:0013:15
9:45
+0:27
21M
21.00 mi14:32:533:10:159:0410:18
10:18
+0:33
35K
21.75 mi14:39:443:17:069:046:51
9:09
-1:09
23M
23.00 mi14:51:333:28:559:0511:49
9:26
+0:17
24M
24.00 mi15:00:453:38:079:059:12
9:12
-0:14
40K
24.85 mi15:08:563:46:189:068:11
9:34
+0:22
25.2M
25.20 mi15:12:363:49:589:083:40
10:38
+1:04
Finish
26.22 mi15:21:493:59:119:089:13
9:03
-1:35

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

8:45 /mi

Average Pace

9:08 /mi

Slowest Pace

10:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:00:47

25% of race

Time at Steady Pace

2:11:11

55% of race

Time at Slower Pace

47:13

20% of race

Average Pace: 9:07 /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 mi11:50:1527:378:5327:37
8:53
#21935
10K
6.21 mi12:17:3855:008:5127:23
8:49
#21710
15K
9.32 mi12:45:041:22:268:5127:26
8:50
#21502
20K
12.43 mi13:12:491:50:118:5227:45
8:56
#21246
Half
13.11 mi13:18:471:56:098:525:58
8:45
#21224
25K
15.53 mi13:40:272:17:498:5221:40
8:56
#20952
30K
18.64 mi14:09:202:46:428:5728:53
9:18
#20584
20M
20.00 mi14:22:352:59:579:0013:15
9:45
#20542
21M
21.00 mi14:32:533:10:159:0410:18
10:18
#20478
35K
21.75 mi14:39:443:17:069:046:51
9:09
#20414
23M
23.00 mi14:51:333:28:559:0511:49
9:26
#20295
24M
24.00 mi15:00:453:38:079:059:12
9:12
#20229
40K
24.85 mi15:08:563:46:189:068:11
9:34
#20189
25.2M
25.20 mi15:12:363:49:589:083:40
10:38
#20184
Finish
26.22 mi15:21:493:59:119:089:13
9:03
#20193
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi21935132811328121168(Top 75%)13016(Top 81%)13016(Top 546%)
10K6.21 mi3.10 mi21710+22513204+7713204+7721455(Top 76%)13113(Top 81%)13113(Top 550%)
15K9.32 mi3.11 mi21502+20813136+6813136+6821168(Top 75%)13016(Top 81%)13016(Top 546%)
20K12.43 mi3.11 mi21246+25613020+11613020+11620623(Top 73%)12720(Top 79%)12720(Top 533%)
Half13.11 mi0.68 mi21224+2213010+1013010+1020600(Top 73%)12726(Top 79%)12726(Top 533%)
25K15.53 mi2.42 mi20952+27212883+12712883+12719613(Top 69%)12240(Top 76%)12240(Top 513%)
30K18.64 mi3.11 mi20584+36812668+21512668+21519094(Top 67%)11876(Top 74%)11876(Top 498%)
20M20.00 mi1.36 mi20542+4212637+3112637+3120105(Top 71%)12198(Top 76%)12198(Top 511%)
21M21.00 mi1.00 mi20478+6412579+5812579+5819362(Top 68%)11776(Top 73%)11776(Top 494%)
35K21.75 mi0.75 mi20414+6412538+4112538+4118970(Top 67%)11484(Top 71%)11484(Top 481%)
23M23.00 mi1.25 mi20295+11912456+8212456+8218402(Top 65%)11172(Top 69%)11172(Top 468%)
24M24.00 mi1.00 mi20229+6612406+5012406+5018347(Top 65%)11086(Top 69%)11086(Top 465%)
40K24.85 mi0.85 mi20189+4012372+3412372+3418983(Top 67%)11314(Top 70%)11314(Top 474%)
25.2M25.20 mi0.35 mi20184+512365+712365+719465(Top 69%)11539(Top 72%)11539(Top 484%)
Finish26.22 mi1.02 mi20193-912361+412361+419252(Top 68%)11460(Top 71%)11460(Top 480%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 75%
×21story building
+97ft-345ft

Overall

21168

Males

13016

M45-49

13016

5K→10K

3.1 - 6.2 mi

Top 76%
×5story building
+79ft-138ft

Overall

21455

Males

13113

M45-49

13113

10K→15K

6.2 - 9.3 mi

Top 75%
×3story building
+67ft-78ft

Overall

21168

Males

13016

M45-49

13016

15K→20K

9.3 - 12.4 mi

Top 73%
×5story building
+106ft-86ft

Overall

20623

Males

12720

M45-49

12720

20K→Half

12.4 - 13.1 mi

Top 73%
×2story building
+19ft-37ft

Overall

20600

Males

12726

M45-49

12726

Half→25K

13.1 - 15.5 mi

Top 69%
×4story building
+66ft-88ft

Overall

19613

Males

12240

M45-49

12240

25K→30K

15.5 - 18.6 mi

Top 67%
×9story building
+181ft-148ft

Overall

19094

Males

11876

M45-49

11876

30K→20M

18.6 - 20.0 mi

Top 71%
×5story building
+64ft-50ft

Overall

20105

Males

12198

M45-49

12198

20M→21M

20.0 - 21.0 mi

Top 68%
×8story building
+106ft-24ft

Overall

19362

Males

11776

M45-49

11776

21M→35K

21.0 - 21.8 mi

Top 67%
×7story building
+17ft-86ft

Overall

18970

Males

11484

M45-49

11484

35K→23M

21.8 - 23.0 mi

Top 65%
×5story building
+23ft-63ft

Overall

18402

Males

11172

M45-49

11172

23M→24M

23.0 - 24.0 mi

Top 65%
×6story building
+12ft-82ft

Overall

18347

Males

11086

M45-49

11086

24M→40K

24.0 - 24.9 mi

Top 67%
×1story
+6ft-20ft

Overall

18983

Males

11314

M45-49

11314

40K→25.2M

24.9 - 25.2 mi

Top 69%
×1story
+13ft-16ft

Overall

19465

Males

11539

M45-49

11539

25.2M→Finish

25.2 - 26.2 mi

Top 68%
×2story building
+22ft-21ft

Overall

19252

Males

11460

M45-49

11460

Passing Analysis

Category:
Athletes Passed
2533
Passed By
791
Net Change
+1742
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21935
5K → 10K392167+225#21935#21710
10K → 15K322114+208#21710#21502
15K → 20K32973+256#21502#21246
20K → Half4523+22#21246#21224
Half → 25K28816+272#21224#20952
25K → 30K42961+368#20952#20584
30K → 20M11876+42#20584#20542
20M → 21M11854+64#20542#20478
21M → 35K8420+64#20478#20414
35K → 23M15132+119#20414#20295
23M → 24M8418+66#20295#20229
24M → 40K8141+40#20229#20189
40K → 25.2M3530+5#20189#20184
25.2M → Finish5766-9#20184#20193
TOTALS2533791+1742
📊

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