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BOSTON MARATHON 2025

Laicey Ieronimo

Bib: 27687•F

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Division (F18-39)
#0 / 5469
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
9:23/mi
29:09
↑ 97↓ 3451.5%
10K· 6.21 mi
10:03/mi
1:00:23
↑ 79↓ 1380.4%
15K· 9.32 mi
10:31/mi
1:33:02
↑ 67↓ 78
20K· 12.43 mi
12:43/mi
2:12:31
↑ 106↓ 860.1%
Half· 13.11 mi
11:07/mi
2:20:06
↑ 19↓ 370.5%
25K· 15.53 mi
13:25/mi
2:52:37
↑ 66↓ 880.2%
30K· 18.64 mi
14:34/mi
3:37:53
↑ 181↓ 1480.2%
20M
16:32/mi
4:00:21
↑ 64↓ 500.2%
21M
16:02/mi
4:16:23
↑ 106↓ 241.6%
35K· 21.75 mi
12:30/mi
4:25:44
↑ 17↓ 861.7%
23M
13:50/mi
4:43:03
↑ 23↓ 630.6%
24M
13:21/mi
4:56:24
↓ 821.3%
40K· 24.85 mi
13:21/mi
5:07:49
↓ 200.3%
25.2M
16:09/mi
5:13:23
↑ 13↓ 160.2%
Finish· 26.22 mi
10:50/mi
5:24:25
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:20:06
Pace10:41 /mi
2nd Half
Distance13.11 mi
Time3:04:19
Pace14:04 /mi
📊Positive Split: 31.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:0229:099:2329:09
9:23
-
10K
6.21 mi12:16:161:00:239:4331:14
10:03
+0:40
15K
9.32 mi12:48:551:33:029:5932:39
10:31
+0:28
20K
12.43 mi13:28:242:12:3110:4039:29
12:43
+2:12
Half
13.11 mi13:35:592:20:0610:417:35
11:07
-1:36
25K
15.53 mi14:08:302:52:3711:0732:31
13:25
+2:18
30K
18.64 mi14:53:463:37:5311:4145:16
14:34
+1:09
20M
20.00 mi15:16:144:00:2112:0122:28
16:32
+1:58
21M
21.00 mi15:32:164:16:2312:1316:02
16:02
-0:30
35K
21.75 mi15:41:374:25:4412:139:21
12:30
-3:32
23M
23.00 mi15:58:564:43:0312:1817:19
13:50
+1:20
24M
24.00 mi16:12:174:56:2412:2113:21
13:21
-0:29
40K
24.85 mi16:23:425:07:4912:2311:25
13:21
0:00
25.2M
25.20 mi16:29:165:13:2312:265:34
16:09
+2:48
Finish
26.22 mi16:40:185:24:2512:2311:02
10:50
-5:19

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

9:23 /mi

Average Pace

12:23 /mi

Slowest Pace

16:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:51:39

34% of race

Time at Steady Pace

2:03:26

38% of race

Time at Slower Pace

1:29:20

28% of race

Average Pace: 12:22 /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 mi11:45:0229:099:2329:09
9:23
#23842
10K
6.21 mi12:16:161:00:239:4331:14
10:03
#24769
15K
9.32 mi12:48:551:33:029:5932:39
10:31
#25235
20K
12.43 mi13:28:242:12:3110:4039:29
12:43
#26267
Half
13.11 mi13:35:592:20:0610:417:35
11:07
#26294
25K
15.53 mi14:08:302:52:3711:0732:31
13:25
#26653
30K
18.64 mi14:53:463:37:5311:4145:16
14:34
#27008
20M
20.00 mi15:16:144:00:2112:0122:28
16:32
#27202
21M
21.00 mi15:32:164:16:2312:1316:02
16:02
#27263
35K
21.75 mi15:41:374:25:4412:139:21
12:30
#27243
23M
23.00 mi15:58:564:43:0312:1817:19
13:50
#27254
24M
24.00 mi16:12:174:56:2412:2113:21
13:21
#27261
40K
24.85 mi16:23:425:07:4912:2311:25
13:21
#27259
25.2M
25.20 mi16:29:165:13:2312:265:34
16:09
#27282
Finish
26.22 mi16:40:185:24:2512:2311:02
10:50
#27229
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi238429616961625957(Top 91%)10768(Top 88%)10768(Top 197%)
10K6.21 mi3.10 mi24769-92710101-48510101-48525424(Top 90%)10477(Top 86%)10477(Top 192%)
15K9.32 mi3.11 mi25235-46610355-25410355-25425957(Top 91%)10768(Top 88%)10768(Top 197%)
20K12.43 mi3.11 mi26267-103210929-57410929-57427660(Top 97%)11795(Top 96%)11795(Top 216%)
Half13.11 mi0.68 mi26294-2710942-1310942-1326661(Top 94%)11214(Top 92%)11214(Top 205%)
25K15.53 mi2.42 mi26653-35911170-22811170-22827569(Top 97%)11754(Top 96%)11754(Top 215%)
30K18.64 mi3.11 mi27008-35511398-22811398-22827836(Top 98%)11971(Top 98%)11971(Top 219%)
20M20.00 mi1.36 mi27202-19411525-12711525-12728256(Top 99%)12171(Top 100%)12171(Top 223%)
21M21.00 mi1.00 mi27263-6111569-4411569-4427817(Top 98%)11966(Top 98%)11966(Top 219%)
35K21.75 mi0.75 mi27243+2011565+411565+426447(Top 93%)11305(Top 92%)11305(Top 207%)
23M23.00 mi1.25 mi27254-1111583-1811583-1827176(Top 96%)11693(Top 96%)11693(Top 214%)
24M24.00 mi1.00 mi27261-711593-1011593-1027185(Top 96%)11738(Top 96%)11738(Top 215%)
40K24.85 mi0.85 mi27259+211592+111592+126642(Top 94%)11466(Top 94%)11466(Top 210%)
25.2M25.20 mi0.35 mi27282-2311608-1611608-1627770(Top 98%)12009(Top 98%)12009(Top 220%)
Finish26.22 mi1.02 mi27229+5311583+2511583+2525000(Top 88%)10660(Top 87%)10660(Top 195%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 91%
×21story building
+97ft-345ft

Overall

25957

Females

10768

F18-39

10768

5K→10K

3.1 - 6.2 mi

Top 90%
×5story building
+79ft-138ft

Overall

25424

Females

10477

F18-39

10477

10K→15K

6.2 - 9.3 mi

Top 91%
×3story building
+67ft-78ft

Overall

25957

Females

10768

F18-39

10768

15K→20K

9.3 - 12.4 mi

Top 97%
×5story building
+106ft-86ft

Overall

27660

Females

11795

F18-39

11795

20K→Half

12.4 - 13.1 mi

Top 94%
×2story building
+19ft-37ft

Overall

26661

Females

11214

F18-39

11214

Half→25K

13.1 - 15.5 mi

Top 97%
×4story building
+66ft-88ft

Overall

27569

Females

11754

F18-39

11754

25K→30K

15.5 - 18.6 mi

Top 98%
×9story building
+181ft-148ft

Overall

27836

Females

11971

F18-39

11971

30K→20M

18.6 - 20.0 mi

Top 99%
×5story building
+64ft-50ft

Overall

28256

Females

12171

F18-39

12171

20M→21M

20.0 - 21.0 mi

Top 98%
×8story building
+106ft-24ft

Overall

27817

Females

11966

F18-39

11966

21M→35K

21.0 - 21.8 mi

Top 93%
×7story building
+17ft-86ft

Overall

26447

Females

11305

F18-39

11305

35K→23M

21.8 - 23.0 mi

Top 96%
×5story building
+23ft-63ft

Overall

27176

Females

11693

F18-39

11693

23M→24M

23.0 - 24.0 mi

Top 96%
×6story building
+12ft-82ft

Overall

27185

Females

11738

F18-39

11738

24M→40K

24.0 - 24.9 mi

Top 94%
×1story
+6ft-20ft

Overall

26642

Females

11466

F18-39

11466

40K→25.2M

24.9 - 25.2 mi

Top 98%
×1story
+13ft-16ft

Overall

27770

Females

12009

F18-39

12009

25.2M→Finish

25.2 - 26.2 mi

Top 88%
×2story building
+22ft-21ft

Overall

25000

Females

10660

F18-39

10660

Passing Analysis

Category:
Athletes Passed
269
Passed By
3656
Net Change
-3387
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23842
5K → 10K33960-927#23842#24769
10K → 15K34500-466#24769#25235
15K → 20K81040-1032#25235#26267
20K → Half835-27#26267#26294
Half → 25K15374-359#26294#26653
25K → 30K15370-355#26653#27008
30K → 20M4198-194#27008#27202
20M → 21M667-61#27202#27263
21M → 35K299+20#27263#27243
35K → 23M2435-11#27243#27254
23M → 24M1724-7#27254#27261
24M → 40K1917+2#27261#27259
40K → 25.2M326-23#27259#27282
25.2M → Finish541+53#27282#27229
TOTALS2693656-3387
📊

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