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BOSTON MARATHON 2025

Alimaa Decatur

Bib: 23875•F

MD

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F50-54)
#0 / 1303
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
8:48/mi
27:20
↑ 97↓ 3451.5%
10K· 6.21 mi
8:56/mi
55:05
↑ 79↓ 1380.4%
15K· 9.32 mi
9:10/mi
1:23:34
↑ 67↓ 78
20K· 12.43 mi
9:46/mi
1:53:54
↑ 106↓ 860.1%
Half· 13.11 mi
9:27/mi
2:00:21
↑ 19↓ 370.5%
25K· 15.53 mi
10:22/mi
2:25:28
↑ 66↓ 880.2%
30K· 18.64 mi
10:30/mi
2:58:05
↑ 181↓ 1480.2%
20M
10:34/mi
3:12:27
↑ 64↓ 500.2%
21M
11:39/mi
3:24:06
↑ 106↓ 241.6%
35K· 21.75 mi
10:04/mi
3:31:38
↑ 17↓ 861.7%
23M
10:33/mi
3:44:51
↑ 23↓ 630.6%
24M
10:32/mi
3:55:23
↓ 821.3%
40K· 24.85 mi
10:20/mi
4:04:13
↓ 200.3%
25.2M
11:13/mi
4:08:05
↑ 13↓ 160.2%
Finish· 26.22 mi
10:26/mi
4:18:43
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:00:21
Pace9:11 /mi
2nd Half
Distance13.11 mi
Time2:18:22
Pace10:33 /mi
📊Positive Split: 15.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:25:0127:208:4827:20
8:48
-
10K
6.21 mi11:52:4655:058:5227:45
8:56
+0:08
15K
9.32 mi12:21:151:23:348:5828:29
9:10
+0:14
20K
12.43 mi12:51:351:53:549:1030:20
9:46
+0:36
Half
13.11 mi12:58:022:00:219:116:27
9:27
-0:19
25K
15.53 mi13:23:092:25:289:2225:07
10:22
+0:55
30K
18.64 mi13:55:462:58:059:3332:37
10:30
+0:08
20M
20.00 mi14:10:083:12:279:3714:22
10:34
+0:04
21M
21.00 mi14:21:473:24:069:4311:39
11:39
+1:05
35K
21.75 mi14:29:193:31:389:447:32
10:04
-1:35
23M
23.00 mi14:42:323:44:519:4713:13
10:33
+0:29
24M
24.00 mi14:53:043:55:239:4810:32
10:32
-0:01
40K
24.85 mi15:01:544:04:139:508:50
10:20
-0:12
25.2M
25.20 mi15:05:464:08:059:513:52
11:13
+0:53
Finish
26.22 mi15:16:244:18:439:5210:38
10:26
-0:47

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

8:48 /mi

Average Pace

9:52 /mi

Slowest Pace

11:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:00:21

47% of race

Time at Steady Pace

2:02:51

47% of race

Time at Slower Pace

15:31

6% of race

Average Pace: 9:52 /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 mi11:25:0127:208:4827:20
8:48
#21516
10K
6.21 mi11:52:4655:058:5227:45
8:56
#21788
15K
9.32 mi12:21:151:23:348:5828:29
9:10
#22147
20K
12.43 mi12:51:351:53:549:1030:20
9:46
#22650
Half
13.11 mi12:58:022:00:219:116:27
9:27
#22689
25K
15.53 mi13:23:092:25:289:2225:07
10:22
#23002
30K
18.64 mi13:55:462:58:059:3332:37
10:30
#22965
20M
20.00 mi14:10:083:12:279:3714:22
10:34
#22917
21M
21.00 mi14:21:473:24:069:4311:39
11:39
#22923
35K
21.75 mi14:29:193:31:389:447:32
10:04
#22884
23M
23.00 mi14:42:323:44:519:4713:13
10:33
#22829
24M
24.00 mi14:53:043:55:239:4810:32
10:32
#22807
40K
24.85 mi15:01:544:04:139:508:50
10:20
#22754
25.2M
25.20 mi15:05:464:08:059:513:52
11:13
#22726
Finish
26.22 mi15:16:244:18:439:5210:38
10:26
#22795
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi215168373837322746(Top 80%)8972(Top 73%)8972(Top 689%)
10K6.21 mi3.10 mi21788-2728494-1218494-12122097(Top 78%)8651(Top 71%)8651(Top 664%)
15K9.32 mi3.11 mi22147-3598674-1808674-18022746(Top 80%)8972(Top 73%)8972(Top 689%)
20K12.43 mi3.11 mi22650-5038930-2568930-25623664(Top 83%)9520(Top 78%)9520(Top 731%)
Half13.11 mi0.68 mi22689-398948-188948-1823450(Top 83%)9402(Top 77%)9402(Top 722%)
25K15.53 mi2.42 mi23002-3139148-2009148-20024096(Top 85%)9793(Top 80%)9793(Top 752%)
30K18.64 mi3.11 mi22965+379168-209168-2022944(Top 81%)9290(Top 76%)9290(Top 713%)
20M20.00 mi1.36 mi22917+489166+29166+222630(Top 80%)9222(Top 75%)9222(Top 708%)
21M21.00 mi1.00 mi22923-69188-229188-2222929(Top 81%)9461(Top 77%)9461(Top 726%)
35K21.75 mi0.75 mi22884+399176+129176+1222115(Top 78%)9094(Top 74%)9094(Top 698%)
23M23.00 mi1.25 mi22829+559171+59171+522166(Top 78%)9154(Top 75%)9154(Top 703%)
24M24.00 mi1.00 mi22807+229179-89179-822925(Top 81%)9597(Top 78%)9597(Top 737%)
40K24.85 mi0.85 mi22754+539167+129167+1221495(Top 76%)8929(Top 73%)8929(Top 685%)
25.2M25.20 mi0.35 mi22726+289159+89159+821317(Top 75%)8827(Top 72%)8827(Top 677%)
Finish26.22 mi1.02 mi22795-699220-619220-6124147(Top 85%)10241(Top 84%)10241(Top 786%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 80%
×21story building
+97ft-345ft

Overall

22746

Females

8972

F50-54

8972

5K→10K

3.1 - 6.2 mi

Top 78%
×5story building
+79ft-138ft

Overall

22097

Females

8651

F50-54

8651

10K→15K

6.2 - 9.3 mi

Top 80%
×3story building
+67ft-78ft

Overall

22746

Females

8972

F50-54

8972

15K→20K

9.3 - 12.4 mi

Top 83%
×5story building
+106ft-86ft

Overall

23664

Females

9520

F50-54

9520

20K→Half

12.4 - 13.1 mi

Top 83%
×2story building
+19ft-37ft

Overall

23450

Females

9402

F50-54

9402

Half→25K

13.1 - 15.5 mi

Top 85%
×4story building
+66ft-88ft

Overall

24096

Females

9793

F50-54

9793

25K→30K

15.5 - 18.6 mi

Top 81%
×9story building
+181ft-148ft

Overall

22944

Females

9290

F50-54

9290

30K→20M

18.6 - 20.0 mi

Top 80%
×5story building
+64ft-50ft

Overall

22630

Females

9222

F50-54

9222

20M→21M

20.0 - 21.0 mi

Top 81%
×8story building
+106ft-24ft

Overall

22929

Females

9461

F50-54

9461

21M→35K

21.0 - 21.8 mi

Top 78%
×7story building
+17ft-86ft

Overall

22115

Females

9094

F50-54

9094

35K→23M

21.8 - 23.0 mi

Top 78%
×5story building
+23ft-63ft

Overall

22166

Females

9154

F50-54

9154

23M→24M

23.0 - 24.0 mi

Top 81%
×6story building
+12ft-82ft

Overall

22925

Females

9597

F50-54

9597

24M→40K

24.0 - 24.9 mi

Top 76%
×1story
+6ft-20ft

Overall

21495

Females

8929

F50-54

8929

40K→25.2M

24.9 - 25.2 mi

Top 75%
×1story
+13ft-16ft

Overall

21317

Females

8827

F50-54

8827

25.2M→Finish

25.2 - 26.2 mi

Top 85%
×2story building
+22ft-21ft

Overall

24147

Females

10241

F50-54

10241

Passing Analysis

Category:
Athletes Passed
1098
Passed By
2377
Net Change
-1279
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21516
5K → 10K161433-272#21516#21788
10K → 15K99458-359#21788#22147
15K → 20K68571-503#22147#22650
20K → Half2261-39#22650#22689
Half → 25K60373-313#22689#23002
25K → 30K178141+37#23002#22965
30K → 20M10153+48#22965#22917
20M → 21M6672-6#22917#22923
21M → 35K5718+39#22923#22884
35K → 23M9035+55#22884#22829
23M → 24M6139+22#22829#22807
24M → 40K7825+53#22807#22754
40K → 25.2M368+28#22754#22726
25.2M → Finish2190-69#22726#22795
TOTALS10982377-1279
📊

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