Boston Marathon logo
BOSTON MARATHON 2025

Ingrid Lacy

Bib: 8154•F

CA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 17%
Gender (Female)
#0 / 12228
Top 4%
Division (F18-39)
#0 / 5469
Top 7%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:41
Rank: #5101
Start → 5K
20:41 | 6:39/mi
10K· 6.21 mi
41:27
Rank: #5123 (-22)
5K → 10K
20:46 | 6:41/mi
15K· 9.32 mi
1:02:24
Rank: #5221 (-98)
10K → 15K
20:57 | 6:45/mi
20K· 12.43 mi
1:23:33
Rank: #5204 (+17)
15K → 20K
21:09 | 6:48/mi
Half· 13.11 mi
1:28:06
Rank: #5177 (+27)
20K → Half
4:33 | 6:40/mi
25K· 15.53 mi
1:44:45
Rank: #5211 (-34)
Half → 25K
16:39 | 6:52/mi
30K· 18.64 mi
2:06:49
Rank: #5195 (+16)
25K → 30K
22:04 | 7:06/mi
20M
2:16:38
Rank: #5202 (-7)
30K → 20M
9:49 | 7:13/mi
21M
2:24:31
Rank: #5288 (-86)
20M → 21M
7:53 | 7:53/mi
35K· 21.75 mi
2:29:35
Rank: #5220 (+68)
21M → 35K
5:04 | 6:46/mi
23M
2:38:29
Rank: #5131 (+89)
35K → 23M
8:54 | 7:06/mi
24M
2:45:25
Rank: #5069 (+62)
23M → 24M
6:56 | 6:56/mi
40K· 24.85 mi
2:51:34
Rank: #5032 (+37)
24M → 40K
6:09 | 7:12/mi
25.2M
2:54:17
Rank: #5020 (+12)
40K → 25.2M
2:43 | 7:53/mi
Finish· 26.22 mi
3:01:14
Rank: #4964 (+56)
25.2M → Finish
6:57 | 6:49/mi

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:06
Pace6:43 /mi
2nd Half
Distance13.11 mi
Time1:33:08
Pace7:06 /mi
📊Positive Split: 5.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:28:1220:416:3920:41
6:39
-
10K
6.21 mi10:48:5841:276:4020:46
6:41
+0:02
15K
9.32 mi11:09:551:02:246:4220:57
6:45
+0:04
20K
12.43 mi11:31:041:23:336:4321:09
6:48
+0:03
Half
13.11 mi11:35:371:28:066:434:33
6:40
-0:08
25K
15.53 mi11:52:161:44:456:4516:39
6:52
+0:12
30K
18.64 mi12:14:202:06:496:4822:04
7:06
+0:14
20M
20.00 mi12:24:092:16:386:509:49
7:13
+0:07
21M
21.00 mi12:32:022:24:316:537:53
7:53
+0:40
35K
21.75 mi12:37:062:29:356:535:04
6:46
-1:07
23M
23.00 mi12:46:002:38:296:538:54
7:06
+0:20
24M
24.00 mi12:52:562:45:256:546:56
6:56
-0:10
40K
24.85 mi12:59:052:51:346:546:09
7:12
+0:16
25.2M
25.20 mi13:01:482:54:176:552:43
7:53
+0:41
Finish
26.22 mi13:08:453:01:146:556:57
6:49
-1:04

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

6:39 /mi

Average Pace

6:55 /mi

Slowest Pace

7:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:50:38

94% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

10:36

6% of race

Average Pace: 6:55 /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 mi10:28:1220:416:3920:41
6:39
#5101
10K
6.21 mi10:48:5841:276:4020:46
6:41
#5123
15K
9.32 mi11:09:551:02:246:4220:57
6:45
#5221
20K
12.43 mi11:31:041:23:336:4321:09
6:48
#5204
Half
13.11 mi11:35:371:28:066:434:33
6:40
#5177
25K
15.53 mi11:52:161:44:456:4516:39
6:52
#5211
30K
18.64 mi12:14:202:06:496:4822:04
7:06
#5195
20M
20.00 mi12:24:092:16:386:509:49
7:13
#5202
21M
21.00 mi12:32:022:24:316:537:53
7:53
#5288
35K
21.75 mi12:37:062:29:356:535:04
6:46
#5220
23M
23.00 mi12:46:002:38:296:538:54
7:06
#5131
24M
24.00 mi12:52:562:45:256:546:56
6:56
#5069
40K
24.85 mi12:59:052:51:346:546:09
7:12
#5032
25.2M
25.20 mi13:01:482:54:176:552:43
7:53
#5020
Finish
26.22 mi13:08:453:01:146:556:57
6:49
#4964
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi51013323325527(Top 19%)446(Top 4%)446(Top 8%)
10K6.21 mi3.10 mi5123-22342-10342-105232(Top 18%)367(Top 3%)367(Top 7%)
15K9.32 mi3.11 mi5221-98361-19361-195527(Top 19%)446(Top 4%)446(Top 8%)
20K12.43 mi3.11 mi5204+17373-12373-125389(Top 19%)434(Top 4%)434(Top 8%)
Half13.11 mi0.68 mi5177+27365+8365+85115(Top 18%)380(Top 3%)380(Top 7%)
25K15.53 mi2.42 mi5211-34380-15380-155433(Top 19%)476(Top 4%)476(Top 9%)
30K18.64 mi3.11 mi5195+16403-23403-235338(Top 19%)515(Top 4%)515(Top 9%)
20M20.00 mi1.36 mi5202-7418-15418-155353(Top 19%)593(Top 5%)593(Top 11%)
21M21.00 mi1.00 mi5288-86436-18436-186703(Top 24%)1172(Top 10%)1172(Top 21%)
35K21.75 mi0.75 mi5220+68427+9427+94010(Top 14%)404(Top 3%)404(Top 7%)
23M23.00 mi1.25 mi5131+89425+2425+24404(Top 16%)504(Top 4%)504(Top 9%)
24M24.00 mi1.00 mi5069+62428-3428-34290(Top 15%)512(Top 4%)512(Top 9%)
40K24.85 mi0.85 mi5032+37429-1429-15033(Top 18%)780(Top 6%)780(Top 14%)
25.2M25.20 mi0.35 mi5020+12431-2431-25341(Top 19%)971(Top 8%)971(Top 18%)
Finish26.22 mi1.02 mi4964+56433-2433-24643(Top 16%)738(Top 6%)738(Top 13%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 19%
×21stories
+97ft-345ft

Overall

5527

Females

446

F18-39

446

5K→10K

3.1 - 6.2 mi

Top 18%
×5stories
+79ft-138ft

Overall

5232

Females

367

F18-39

367

10K→15K

6.2 - 9.3 mi

Top 19%
×3stories
+67ft-78ft

Overall

5527

Females

446

F18-39

446

15K→20K

9.3 - 12.4 mi

Top 19%
×5stories
+106ft-86ft

Overall

5389

Females

434

F18-39

434

20K→Half

12.4 - 13.1 mi

Top 18%
×2stories
+19ft-37ft

Overall

5115

Females

380

F18-39

380

Half→25K

13.1 - 15.5 mi

Top 19%
×4stories
+66ft-88ft

Overall

5433

Females

476

F18-39

476

25K→30K

15.5 - 18.6 mi

Top 19%
×9stories
+181ft-148ft

Overall

5338

Females

515

F18-39

515

30K→20M

18.6 - 20.0 mi

Top 19%
×5stories
+64ft-50ft

Overall

5353

Females

593

F18-39

593

20M→21M

20.0 - 21.0 mi

Top 24%
×8stories
+106ft-24ft

Overall

6703

Females

1172

F18-39

1172

21M→35K

21.0 - 21.8 mi

Top 14%
×7stories
+17ft-86ft

Overall

4010

Females

404

F18-39

404

35K→23M

21.8 - 23.0 mi

Top 16%
×5stories
+23ft-63ft

Overall

4404

Females

504

F18-39

504

23M→24M

23.0 - 24.0 mi

Top 15%
×6stories
+12ft-82ft

Overall

4290

Females

512

F18-39

512

24M→40K

24.0 - 24.9 mi

Top 18%
×1story
+6ft-20ft

Overall

5033

Females

780

F18-39

780

40K→25.2M

24.9 - 25.2 mi

Top 19%
×1story
+13ft-16ft

Overall

5341

Females

971

F18-39

971

25.2M→Finish

25.2 - 26.2 mi

Top 16%
×2stories
+22ft-21ft

Overall

4643

Females

738

F18-39

738

Passing Analysis

Category:
Athletes Passed
1294
Passed By
1157
Net Change
+137
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5101
5K → 10K165187-22#5101#5123
10K → 15K98196-98#5123#5221
15K → 20K135118+17#5221#5204
20K → Half4821+27#5204#5177
Half → 25K97131-34#5177#5211
25K → 30K172156+16#5211#5195
30K → 20M6976-7#5195#5202
20M → 21M55141-86#5202#5288
21M → 35K7911+68#5288#5220
35K → 23M12637+89#5220#5131
23M → 24M8624+62#5131#5069
24M → 40K6629+37#5069#5032
40K → 25.2M2210+12#5032#5020
25.2M → Finish7620+56#5020#4964
TOTALS12941157+137
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing