Boston Marathon logo
BOSTON MARATHON 2025

Crystal Ross

Bib: 19038•F

MA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Top 40%
Gender (Female)
#0 / 12228
Top 24%
Masters (Masters Women)
#0 / 6759
Top 11%
Division (F40-44)
#0 / 1718
Top 23%
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
7:43/mi
23:58
↑ 97↓ 3451.5%
10K· 6.21 mi
7:41/mi
47:49
↑ 79↓ 1380.4%
15K· 9.32 mi
7:43/mi
1:11:49
↑ 67↓ 78
20K· 12.43 mi
7:51/mi
1:36:13
↑ 106↓ 860.1%
Half· 13.11 mi
7:42/mi
1:41:28
↑ 19↓ 370.5%
25K· 15.53 mi
7:49/mi
2:00:24
↑ 66↓ 880.2%
30K· 18.64 mi
7:58/mi
2:25:10
↑ 181↓ 1480.2%
20M
8:08/mi
2:36:13
↑ 64↓ 500.2%
21M
8:19/mi
2:44:32
↑ 106↓ 241.6%
35K· 21.75 mi
7:29/mi
2:50:08
↑ 17↓ 861.7%
23M
7:50/mi
2:59:56
↑ 23↓ 630.6%
24M
7:32/mi
3:07:28
↓ 821.3%
40K· 24.85 mi
7:40/mi
3:14:01
↓ 200.3%
25.2M
8:25/mi
3:16:55
↑ 13↓ 160.2%
Finish· 26.22 mi
7:18/mi
3:24:21
↑ 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
Time1:41:28
Pace7:44 /mi
2nd Half
Distance13.11 mi
Time1:42:53
Pace7:51 /mi
📊Positive Split: 1.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:4123:587:4323:58
7:43
-
10K
6.21 mi11:38:3247:497:4223:51
7:41
-0:02
15K
9.32 mi12:02:321:11:497:4224:00
7:43
+0:02
20K
12.43 mi12:26:561:36:137:4524:24
7:51
+0:08
Half
13.11 mi12:32:111:41:287:445:15
7:42
-0:09
25K
15.53 mi12:51:072:00:247:4518:56
7:49
+0:07
30K
18.64 mi13:15:532:25:107:4724:46
7:58
+0:09
20M
20.00 mi13:26:562:36:137:4911:03
8:08
+0:10
21M
21.00 mi13:35:152:44:327:508:19
8:19
+0:11
35K
21.75 mi13:40:512:50:087:495:36
7:29
-0:50
23M
23.00 mi13:50:392:59:567:499:48
7:50
+0:21
24M
24.00 mi13:58:113:07:287:497:32
7:32
-0:18
40K
24.85 mi14:04:443:14:017:486:33
7:40
+0:08
25.2M
25.20 mi14:07:383:16:557:492:54
8:25
+0:45
Finish
26.22 mi14:15:043:24:217:487:26
7:18
-1:07

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

7:18 /mi

Average Pace

7:48 /mi

Slowest Pace

8:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:02:05

89% of race

Time at Steady Pace

22:16

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:48 /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 mi11:14:4123:587:4323:58
7:43
#14096
10K
6.21 mi11:38:3247:497:4223:51
7:41
#13889
15K
9.32 mi12:02:321:11:497:4224:00
7:43
#13792
20K
12.43 mi12:26:561:36:137:4524:24
7:51
#13734
Half
13.11 mi12:32:111:41:287:445:15
7:42
#13712
25K
15.53 mi12:51:072:00:247:4518:56
7:49
#13438
30K
18.64 mi13:15:532:25:107:4724:46
7:58
#12970
20M
20.00 mi13:26:562:36:137:4911:03
8:08
#12818
21M
21.00 mi13:35:152:44:327:508:19
8:19
#12586
35K
21.75 mi13:40:512:50:087:495:36
7:29
#12401
23M
23.00 mi13:50:392:59:567:499:48
7:50
#12147
24M
24.00 mi13:58:113:07:287:497:32
7:32
#11936
40K
24.85 mi14:04:443:14:017:486:33
7:40
#11742
25.2M
25.20 mi14:07:383:16:557:492:54
8:25
#11667
Finish
26.22 mi14:15:043:24:217:487:26
7:18
#11460
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi140963967396713742(Top 48%)3860(Top 32%)3860(Top 225%)
10K6.21 mi3.10 mi13889+2073875+923875+9213682(Top 48%)3765(Top 31%)3765(Top 219%)
15K9.32 mi3.11 mi13792+973844+313844+3113742(Top 48%)3860(Top 32%)3860(Top 225%)
20K12.43 mi3.11 mi13734+583861-173861-1713714(Top 48%)3933(Top 32%)3933(Top 229%)
Half13.11 mi0.68 mi13712+223860+13860+113370(Top 47%)3681(Top 30%)3681(Top 214%)
25K15.53 mi2.42 mi13438+2743731+1293731+12912442(Top 44%)3358(Top 27%)3358(Top 195%)
30K18.64 mi3.11 mi12970+4683533+1983533+19811184(Top 39%)2880(Top 24%)2880(Top 168%)
20M20.00 mi1.36 mi12818+1523476+573476+5711359(Top 40%)3113(Top 25%)3113(Top 181%)
21M21.00 mi1.00 mi12586+2323385+913385+919368(Top 33%)2327(Top 19%)2327(Top 135%)
35K21.75 mi0.75 mi12401+1853313+723313+728590(Top 30%)1956(Top 16%)1956(Top 114%)
23M23.00 mi1.25 mi12147+2543211+1023211+1028813(Top 31%)2182(Top 18%)2182(Top 127%)
24M24.00 mi1.00 mi11936+2113138+733138+737989(Top 28%)1874(Top 15%)1874(Top 109%)
40K24.85 mi0.85 mi11742+1943067+713067+717884(Top 28%)1949(Top 16%)1949(Top 113%)
25.2M25.20 mi0.35 mi11667+753047+203047+208363(Top 29%)2243(Top 18%)2243(Top 131%)
Finish26.22 mi1.02 mi11460+2072985+622985+627782(Top 27%)1980(Top 16%)1980(Top 115%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 48%
×21story building
+97ft-345ft

Overall

13742

Females

3860

F40-44

3860

5K→10K

3.1 - 6.2 mi

Top 48%
×5story building
+79ft-138ft

Overall

13682

Females

3765

F40-44

3765

10K→15K

6.2 - 9.3 mi

Top 48%
×3story building
+67ft-78ft

Overall

13742

Females

3860

F40-44

3860

15K→20K

9.3 - 12.4 mi

Top 48%
×5story building
+106ft-86ft

Overall

13714

Females

3933

F40-44

3933

20K→Half

12.4 - 13.1 mi

Top 47%
×2story building
+19ft-37ft

Overall

13370

Females

3681

F40-44

3681

Half→25K

13.1 - 15.5 mi

Top 44%
×4story building
+66ft-88ft

Overall

12442

Females

3358

F40-44

3358

25K→30K

15.5 - 18.6 mi

Top 39%
×9story building
+181ft-148ft

Overall

11184

Females

2880

F40-44

2880

30K→20M

18.6 - 20.0 mi

Top 40%
×5story building
+64ft-50ft

Overall

11359

Females

3113

F40-44

3113

20M→21M

20.0 - 21.0 mi

Top 33%
×8story building
+106ft-24ft

Overall

9368

Females

2327

F40-44

2327

21M→35K

21.0 - 21.8 mi

Top 30%
×7story building
+17ft-86ft

Overall

8590

Females

1956

F40-44

1956

35K→23M

21.8 - 23.0 mi

Top 31%
×5story building
+23ft-63ft

Overall

8813

Females

2182

F40-44

2182

23M→24M

23.0 - 24.0 mi

Top 28%
×6story building
+12ft-82ft

Overall

7989

Females

1874

F40-44

1874

24M→40K

24.0 - 24.9 mi

Top 28%
×1story
+6ft-20ft

Overall

7884

Females

1949

F40-44

1949

40K→25.2M

24.9 - 25.2 mi

Top 29%
×1story
+13ft-16ft

Overall

8363

Females

2243

F40-44

2243

25.2M→Finish

25.2 - 26.2 mi

Top 27%
×2story building
+22ft-21ft

Overall

7782

Females

1980

F40-44

1980

Passing Analysis

Category:
Athletes Passed
3343
Passed By
707
Net Change
+2636
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14096
5K → 10K384177+207#14096#13889
10K → 15K242145+97#13889#13792
15K → 20K238180+58#13792#13734
20K → Half4523+22#13734#13712
Half → 25K30531+274#13712#13438
25K → 30K51850+468#13438#12970
30K → 20M19947+152#12970#12818
20M → 21M24513+232#12818#12586
21M → 35K1916+185#12586#12401
35K → 23M2628+254#12401#12147
23M → 24M2143+211#12147#11936
24M → 40K1973+194#11936#11742
40K → 25.2M8611+75#11742#11667
25.2M → Finish21710+207#11667#11460
TOTALS3343707+2636
📊

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