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BOSTON MARATHON 2025

Jouraima Koolman-Ras

Bib: 19748•F

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 40%
Gender (Female)
#0 / 12228
Top 24%
Division (F18-39)
#0 / 5469
Top 41%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:27
Rank: #15419
Start → 5K
7:52/mi
24:27 split
10K· 6.21 mi
48:18
Rank: #14521 (+898)
5K → 10K
7:41/mi
23:51 split
15K· 9.32 mi
1:12:16
Rank: #14232 (+289)
10K → 15K
7:43/mi
23:58 split
20K· 12.43 mi
1:36:27
Rank: #13908 (+324)
15K → 20K
7:47/mi
24:11 split
Half· 13.11 mi
1:41:44
Rank: #13908
20K → Half
7:45/mi
5:17 split
25K· 15.53 mi
2:00:47
Rank: #13661 (+247)
Half → 25K
7:51/mi
19:03 split
30K· 18.64 mi
2:25:25
Rank: #13087 (+574)
25K → 30K
7:56/mi
24:38 split
20M
2:36:15
Rank: #12839 (+248)
30K → 20M
7:58/mi
10:50 split
21M
2:44:27
Rank: #12538 (+301)
20M → 21M
8:12/mi
8:12 split
35K· 21.75 mi
2:50:21
Rank: #12486 (+52)
21M → 35K
7:53/mi
5:54 split
23M
3:00:07
Rank: #12218 (+268)
35K → 23M
7:48/mi
9:46 split
24M
3:07:41
Rank: #12006 (+212)
23M → 24M
7:34/mi
7:34 split
40K· 24.85 mi
3:14:14
Rank: #11811 (+195)
24M → 40K
7:40/mi
6:33 split
25.2M
3:16:58
Rank: #11685 (+126)
40K → 25.2M
7:56/mi
2:44 split
Finish· 26.22 mi
3:24:10
Rank: #11400 (+285)
25.2M → Finish
7:04/mi
7:12 split

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:41:44
Pace7:46 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:42:26
Pace7:49 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:40:1324:277:5224:27
7:52
-
10K
6.21 mi12:04:0448:187:4623:51
7:41
-0:11
15K
9.32 mi12:28:021:12:167:4523:58
7:43
+0:02
20K
12.43 mi12:52:131:36:277:4624:11
7:47
+0:04
Half
13.11 mi12:57:301:41:447:465:17
7:45
-0:02
25K
15.53 mi13:16:332:00:477:4719:03
7:51
+0:06
30K
18.64 mi13:41:112:25:257:4824:38
7:56
+0:05
20M
20.00 mi13:52:012:36:157:4910:50
7:58
+0:02
21M
21.00 mi14:00:132:44:277:508:12
8:12
+0:14
35K
21.75 mi14:06:072:50:217:505:54
7:53
-0:19
23M
23.00 mi14:15:533:00:077:509:46
7:48
-0:05
24M
24.00 mi14:23:273:07:417:497:34
7:34
-0:14
40K
24.85 mi14:30:003:14:147:496:33
7:40
+0:06
25.2M
25.20 mi14:32:443:16:587:492:44
7:56
+0:16
Finish
26.22 mi14:39:563:24:107:487:12
7:04
-0:52

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

7:04 /mi

Average Pace

7:48 /mi

Slowest Pace

8:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:14:25

36% of race

Time at Steady Pace

2:09:45

64% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:47 /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 mi11:40:1324:277:5224:27
7:52
#15419
10K
6.21 mi12:04:0448:187:4623:51
7:41
#14521
15K
9.32 mi12:28:021:12:167:4523:58
7:43
#14232
20K
12.43 mi12:52:131:36:277:4624:11
7:47
#13908
Half
13.11 mi12:57:301:41:447:465:17
7:45
#13908
25K
15.53 mi13:16:332:00:477:4719:03
7:51
#13661
30K
18.64 mi13:41:112:25:257:4824:38
7:56
#13087
20M
20.00 mi13:52:012:36:157:4910:50
7:58
#12839
21M
21.00 mi14:00:132:44:277:508:12
8:12
#12538
35K
21.75 mi14:06:072:50:217:505:54
7:53
#12486
23M
23.00 mi14:15:533:00:077:509:46
7:48
#12218
24M
24.00 mi14:23:273:07:417:497:34
7:34
#12006
40K
24.85 mi14:30:003:14:147:496:33
7:40
#11811
25.2M
25.20 mi14:32:443:16:587:492:44
7:56
#11685
Finish
26.22 mi14:39:563:24:107:487:12
7:04
#11400
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi154194783478313639(Top 48%)3802(Top 31%)3802(Top 70%)
10K6.21 mi3.10 mi14521+8984247+5364247+53613681(Top 48%)3764(Top 31%)3764(Top 69%)
15K9.32 mi3.11 mi14232+2894102+1454102+14513639(Top 48%)3802(Top 31%)3802(Top 70%)
20K12.43 mi3.11 mi13908+3243954+1483954+14813143(Top 46%)3618(Top 30%)3618(Top 66%)
Half13.11 mi0.68 mi139083957-33957-313782(Top 49%)3921(Top 32%)3921(Top 72%)
25K15.53 mi2.42 mi13661+2473851+1063851+10612814(Top 45%)3565(Top 29%)3565(Top 65%)
30K18.64 mi3.11 mi13087+5743604+2473604+24710874(Top 38%)2720(Top 22%)2720(Top 50%)
20M20.00 mi1.36 mi12839+2483491+1133491+11310284(Top 36%)2585(Top 21%)2585(Top 47%)
21M21.00 mi1.00 mi12538+3013359+1323359+1328633(Top 30%)2007(Top 16%)2007(Top 37%)
35K21.75 mi0.75 mi12486+523357+23357+211484(Top 40%)3356(Top 27%)3356(Top 61%)
23M23.00 mi1.25 mi12218+2683252+1053252+1058627(Top 30%)2105(Top 17%)2105(Top 38%)
24M24.00 mi1.00 mi12006+2123178+743178+748220(Top 29%)1974(Top 16%)1974(Top 36%)
40K24.85 mi0.85 mi11811+1953106+723106+727883(Top 28%)1948(Top 16%)1948(Top 36%)
25.2M25.20 mi0.35 mi11685+1263057+493057+495685(Top 20%)1148(Top 9%)1148(Top 21%)
Finish26.22 mi1.02 mi11400+2852954+1032954+1036197(Top 22%)1330(Top 11%)1330(Top 24%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 48%
×21story building
+97ft-345ft

Overall

13639

Females

3802

F18-39

3802

5K→10K

3.1 - 6.2 mi

Top 48%
×5story building
+79ft-138ft

Overall

13681

Females

3764

F18-39

3764

10K→15K

6.2 - 9.3 mi

Top 48%
×3story building
+67ft-78ft

Overall

13639

Females

3802

F18-39

3802

15K→20K

9.3 - 12.4 mi

Top 46%
×5story building
+106ft-86ft

Overall

13143

Females

3618

F18-39

3618

20K→Half

12.4 - 13.1 mi

Top 49%
×2story building
+19ft-37ft

Overall

13782

Females

3921

F18-39

3921

Half→25K

13.1 - 15.5 mi

Top 45%
×4story building
+66ft-88ft

Overall

12814

Females

3565

F18-39

3565

25K→30K

15.5 - 18.6 mi

Top 38%
×9story building
+181ft-148ft

Overall

10874

Females

2720

F18-39

2720

30K→20M

18.6 - 20.0 mi

Top 36%
×5story building
+64ft-50ft

Overall

10284

Females

2585

F18-39

2585

20M→21M

20.0 - 21.0 mi

Top 30%
×8story building
+106ft-24ft

Overall

8633

Females

2007

F18-39

2007

21M→35K

21.0 - 21.8 mi

Top 40%
×7story building
+17ft-86ft

Overall

11484

Females

3356

F18-39

3356

35K→23M

21.8 - 23.0 mi

Top 30%
×5story building
+23ft-63ft

Overall

8627

Females

2105

F18-39

2105

23M→24M

23.0 - 24.0 mi

Top 29%
×6story building
+12ft-82ft

Overall

8220

Females

1974

F18-39

1974

24M→40K

24.0 - 24.9 mi

Top 28%
×1story
+6ft-20ft

Overall

7883

Females

1948

F18-39

1948

40K→25.2M

24.9 - 25.2 mi

Top 20%
×1story
+13ft-16ft

Overall

5685

Females

1148

F18-39

1148

25.2M→Finish

25.2 - 26.2 mi

Top 22%
×2story building
+22ft-21ft

Overall

6197

Females

1330

F18-39

1330

Passing Analysis

Category:
Athletes Passed
4408
Passed By
389
Net Change
+4019
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15419
5K → 10K95658+898#15419#14521
10K → 15K36374+289#14521#14232
15K → 20K38258+324#14232#13908
20K → Half36360#13908#13908
Half → 25K30255+247#13908#13661
25K → 30K60531+574#13661#13087
30K → 20M25810+248#13087#12839
20M → 21M3054+301#12839#12538
21M → 35K9442+52#12538#12486
35K → 23M2735+268#12486#12218
23M → 24M2153+212#12218#12006
24M → 40K2005+195#12006#11811
40K → 25.2M1282+126#11811#11685
25.2M → Finish2916+285#11685#11400
TOTALS4408389+4019
📊

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