Boston Marathon logo
BOSTON MARATHON 2025

Lauren Haas

Bib: 14108•F

WA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 37%
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
7:47/mi
24:10
↑ 97↓ 3451.5%
10K· 6.21 mi
7:48/mi
48:23
↑ 79↓ 1380.4%
15K· 9.32 mi
8:08/mi
1:13:40
↑ 67↓ 78
20K· 12.43 mi
7:48/mi
1:37:53
↑ 106↓ 860.1%
Half· 13.11 mi
7:40/mi
1:43:07
↑ 19↓ 370.5%
25K· 15.53 mi
7:45/mi
2:01:55
↑ 66↓ 880.2%
30K· 18.64 mi
8:07/mi
2:27:07
↑ 181↓ 1480.2%
20M
8:06/mi
2:38:07
↑ 64↓ 500.2%
21M
9:44/mi
2:47:51
↑ 106↓ 241.6%
35K· 21.75 mi
7:52/mi
2:53:44
↑ 17↓ 861.7%
23M
8:43/mi
3:04:39
↑ 23↓ 630.6%
24M
8:44/mi
3:13:23
↓ 821.3%
40K· 24.85 mi
9:16/mi
3:21:18
↓ 200.3%
25.2M
11:19/mi
3:25:12
↑ 13↓ 160.2%
Finish· 26.22 mi
8:41/mi
3:34:03
↑ 22↓ 21

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
Time1:43:07
Pace7:52 /mi
2nd Half
Distance13.11 mi
Time1:50:56
Pace8:28 /mi
📊Positive Split: 7.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:1924:107:4724:10
7:47
-
10K
6.21 mi11:18:3248:237:4724:13
7:48
+0:01
15K
9.32 mi11:43:491:13:407:5425:17
8:08
+0:20
20K
12.43 mi12:08:021:37:537:5324:13
7:48
-0:20
Half
13.11 mi12:13:161:43:077:525:14
7:40
-0:08
25K
15.53 mi12:32:042:01:557:5118:48
7:45
+0:05
30K
18.64 mi12:57:162:27:077:5425:12
8:07
+0:22
20M
20.00 mi13:08:162:38:077:5411:00
8:06
-0:01
21M
21.00 mi13:18:002:47:518:009:44
9:44
+1:38
35K
21.75 mi13:23:532:53:447:595:53
7:52
-1:52
23M
23.00 mi13:34:483:04:398:0210:55
8:43
+0:51
24M
24.00 mi13:43:323:13:238:038:44
8:44
+0:01
40K
24.85 mi13:51:273:21:188:067:55
9:16
+0:32
25.2M
25.20 mi13:55:213:25:128:093:54
11:19
+2:03
Finish
26.22 mi14:04:123:34:038:108:51
8:41
-2:38

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

7:40 /mi

Average Pace

8:10 /mi

Slowest Pace

11:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:44:00

77% of race

Time at Slower Pace

50:03

23% of race

Average Pace: 8:10 /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 mi10:54:1924:107:4724:10
7:47
#14636
10K
6.21 mi11:18:3248:237:4724:13
7:48
#14661
15K
9.32 mi11:43:491:13:407:5425:17
8:08
#15524
20K
12.43 mi12:08:021:37:537:5324:13
7:48
#14889
Half
13.11 mi12:13:161:43:077:525:14
7:40
#14797
25K
15.53 mi12:32:042:01:557:5118:48
7:45
#14302
30K
18.64 mi12:57:162:27:077:5425:12
8:07
#13814
20M
20.00 mi13:08:162:38:077:5411:00
8:06
#13574
21M
21.00 mi13:18:002:47:518:009:44
9:44
#13805
35K
21.75 mi13:23:532:53:447:595:53
7:52
#13692
23M
23.00 mi13:34:483:04:398:0210:55
8:43
#13748
24M
24.00 mi13:43:323:13:238:038:44
8:44
#13861
40K
24.85 mi13:51:273:21:188:067:55
9:16
#14039
25.2M
25.20 mi13:55:213:25:128:093:54
11:19
#14218
Finish
26.22 mi14:04:123:34:038:108:51
8:41
#14310
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi146364306430617000(Top 60%)5729(Top 47%)5729(Top 105%)
10K6.21 mi3.10 mi14661-254343-374343-3714761(Top 52%)4399(Top 36%)4399(Top 80%)
15K9.32 mi3.11 mi15524-8634862-5194862-51917000(Top 60%)5729(Top 47%)5729(Top 105%)
20K12.43 mi3.11 mi14889+6354526+3364526+33613245(Top 47%)3684(Top 30%)3684(Top 67%)
Half13.11 mi0.68 mi14797+924473+534473+5313244(Top 47%)3644(Top 30%)3644(Top 67%)
25K15.53 mi2.42 mi14302+4954219+2544219+25412002(Top 42%)3124(Top 26%)3124(Top 57%)
30K18.64 mi3.11 mi13814+4884004+2154004+21512196(Top 43%)3391(Top 28%)3391(Top 62%)
20M20.00 mi1.36 mi13574+2403894+1103894+11011111(Top 39%)3008(Top 25%)3008(Top 55%)
21M21.00 mi1.00 mi13805-2314062-1684062-16817186(Top 61%)6358(Top 52%)6358(Top 116%)
35K21.75 mi0.75 mi13692+1134017+454017+4511377(Top 40%)3329(Top 27%)3329(Top 61%)
23M23.00 mi1.25 mi13748-564085-684085-6814669(Top 52%)5155(Top 42%)5155(Top 94%)
24M24.00 mi1.00 mi13861-1134180-954180-9515939(Top 56%)5893(Top 48%)5893(Top 108%)
40K24.85 mi0.85 mi14039-1784298-1184298-11817651(Top 62%)6938(Top 57%)6938(Top 127%)
25.2M25.20 mi0.35 mi14218-1794403-1054403-10521553(Top 76%)8922(Top 73%)8922(Top 163%)
Finish26.22 mi1.02 mi14310-924485-824485-8217395(Top 61%)6751(Top 55%)6751(Top 123%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 60%
×21story building
+97ft-345ft

Overall

17000

Females

5729

F18-39

5729

5K→10K

3.1 - 6.2 mi

Top 52%
×5story building
+79ft-138ft

Overall

14761

Females

4399

F18-39

4399

10K→15K

6.2 - 9.3 mi

Top 60%
×3story building
+67ft-78ft

Overall

17000

Females

5729

F18-39

5729

15K→20K

9.3 - 12.4 mi

Top 47%
×5story building
+106ft-86ft

Overall

13245

Females

3684

F18-39

3684

20K→Half

12.4 - 13.1 mi

Top 47%
×2story building
+19ft-37ft

Overall

13244

Females

3644

F18-39

3644

Half→25K

13.1 - 15.5 mi

Top 42%
×4story building
+66ft-88ft

Overall

12002

Females

3124

F18-39

3124

25K→30K

15.5 - 18.6 mi

Top 43%
×9story building
+181ft-148ft

Overall

12196

Females

3391

F18-39

3391

30K→20M

18.6 - 20.0 mi

Top 39%
×5story building
+64ft-50ft

Overall

11111

Females

3008

F18-39

3008

20M→21M

20.0 - 21.0 mi

Top 61%
×8story building
+106ft-24ft

Overall

17186

Females

6358

F18-39

6358

21M→35K

21.0 - 21.8 mi

Top 40%
×7story building
+17ft-86ft

Overall

11377

Females

3329

F18-39

3329

35K→23M

21.8 - 23.0 mi

Top 52%
×5story building
+23ft-63ft

Overall

14669

Females

5155

F18-39

5155

23M→24M

23.0 - 24.0 mi

Top 56%
×6story building
+12ft-82ft

Overall

15939

Females

5893

F18-39

5893

24M→40K

24.0 - 24.9 mi

Top 62%
×1story
+6ft-20ft

Overall

17651

Females

6938

F18-39

6938

40K→25.2M

24.9 - 25.2 mi

Top 76%
×1story
+13ft-16ft

Overall

21553

Females

8922

F18-39

8922

25.2M→Finish

25.2 - 26.2 mi

Top 61%
×2story building
+22ft-21ft

Overall

17395

Females

6751

F18-39

6751

Passing Analysis

Category:
Athletes Passed
2769
Passed By
2443
Net Change
+326
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14636
5K → 10K282307-25#14636#14661
10K → 15K45908-863#14661#15524
15K → 20K6427+635#15524#14889
20K → Half1008+92#14889#14797
Half → 25K5027+495#14797#14302
25K → 30K52941+488#14302#13814
30K → 20M25616+240#13814#13574
20M → 21M46277-231#13574#13805
21M → 35K1163+113#13805#13692
35K → 23M99155-56#13692#13748
23M → 24M60173-113#13748#13861
24M → 40K38216-178#13861#14039
40K → 25.2M7186-179#14039#14218
25.2M → Finish47139-92#14218#14310
TOTALS27692443+326
📊

Passing Visuals

Category:
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

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing