Boston Marathon logo
BOSTON MARATHON 2025

Regina Black

Bib: 16118•F

VA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Top 43%
Gender (Female)
#0 / 12228
Top 27%
Division (F18-39)
#0 / 5469
Top 46%
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
7:39/mi
23:46
↑ 97↓ 3451.5%
10K· 6.21 mi
7:34/mi
47:16
↑ 79↓ 1380.4%
15K· 9.32 mi
7:33/mi
1:10:43
↑ 67↓ 78
20K· 12.43 mi
7:48/mi
1:34:56
↑ 106↓ 860.1%
Half· 13.11 mi
7:33/mi
1:40:05
↑ 19↓ 370.5%
25K· 15.53 mi
7:55/mi
1:59:17
↑ 66↓ 880.2%
30K· 18.64 mi
8:04/mi
2:24:21
↑ 181↓ 1480.2%
20M
8:23/mi
2:35:45
↑ 64↓ 500.2%
21M
9:07/mi
2:44:52
↑ 106↓ 241.6%
35K· 21.75 mi
8:05/mi
2:50:55
↑ 17↓ 861.7%
23M
8:07/mi
3:01:05
↑ 23↓ 630.6%
24M
7:55/mi
3:09:00
↓ 821.3%
40K· 24.85 mi
7:58/mi
3:15:49
↓ 200.3%
25.2M
8:45/mi
3:18:50
↑ 13↓ 160.2%
Finish· 26.22 mi
7:46/mi
3:26:45
↑ 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
Time1:40:05
Pace7:38 /mi
2nd Half
Distance13.11 mi
Time1:46:40
Pace8:08 /mi
📊Positive Split: 6.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:58:2123:467:3923:46
7:39
-
10K
6.21 mi11:21:5147:167:3623:30
7:34
-0:05
15K
9.32 mi11:45:181:10:437:3523:27
7:33
-0:01
20K
12.43 mi12:09:311:34:567:3824:13
7:48
+0:15
Half
13.11 mi12:14:401:40:057:385:09
7:33
-0:15
25K
15.53 mi12:33:521:59:177:4119:12
7:55
+0:22
30K
18.64 mi12:58:562:24:217:4525:04
8:04
+0:09
20M
20.00 mi13:10:202:35:457:4711:24
8:23
+0:19
21M
21.00 mi13:19:272:44:527:519:07
9:07
+0:44
35K
21.75 mi13:25:302:50:557:526:03
8:05
-1:02
23M
23.00 mi13:35:403:01:057:5210:10
8:07
+0:02
24M
24.00 mi13:43:353:09:007:537:55
7:55
-0:12
40K
24.85 mi13:50:243:15:497:536:49
7:58
+0:03
25.2M
25.20 mi13:53:253:18:507:533:01
8:45
+0:47
Finish
26.22 mi14:01:203:26:457:537:55
7:46
-0:59

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

7:33 /mi

Average Pace

7:53 /mi

Slowest Pace

9:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:15:52

37% of race

Time at Steady Pace

1:47:21

52% of race

Time at Slower Pace

23:32

11% of race

Average Pace: 7:53 /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 mi10:58:2123:467:3923:46
7:39
#13536
10K
6.21 mi11:21:5147:167:3623:30
7:34
#13106
15K
9.32 mi11:45:181:10:437:3523:27
7:33
#12754
20K
12.43 mi12:09:311:34:567:3824:13
7:48
#12830
Half
13.11 mi12:14:401:40:057:385:09
7:33
#12792
25K
15.53 mi12:33:521:59:177:4119:12
7:55
#12841
30K
18.64 mi12:58:562:24:217:4525:04
8:04
#12612
20M
20.00 mi13:10:202:35:457:4711:24
8:23
#12626
21M
21.00 mi13:19:272:44:527:519:07
9:07
#12704
35K
21.75 mi13:25:302:50:557:526:03
8:05
#12703
23M
23.00 mi13:35:403:01:057:5210:10
8:07
#12550
24M
24.00 mi13:43:353:09:007:537:55
7:55
#12442
40K
24.85 mi13:50:243:15:497:536:49
7:58
#12318
25.2M
25.20 mi13:53:253:18:507:533:01
8:45
#12280
Finish
26.22 mi14:01:203:26:457:537:55
7:46
#12204
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi135363619361912184(Top 43%)3011(Top 25%)3011(Top 55%)
10K6.21 mi3.10 mi13106+4303404+2153404+21512708(Top 45%)3204(Top 26%)3204(Top 59%)
15K9.32 mi3.11 mi12754+3523241+1633241+16312184(Top 43%)3011(Top 25%)3011(Top 55%)
20K12.43 mi3.11 mi12830-763346-1053346-10513237(Top 47%)3676(Top 30%)3676(Top 67%)
Half13.11 mi0.68 mi12792+383331+153331+1512212(Top 43%)3073(Top 25%)3073(Top 56%)
25K15.53 mi2.42 mi12841-493384-533384-5313251(Top 47%)3794(Top 31%)3794(Top 69%)
30K18.64 mi3.11 mi12612+2293329+553329+5511884(Top 42%)3237(Top 26%)3237(Top 59%)
20M20.00 mi1.36 mi12626-143375-463375-4613091(Top 46%)4026(Top 33%)4026(Top 74%)
21M21.00 mi1.00 mi12704-783450-753450-7514203(Top 50%)4733(Top 39%)4733(Top 87%)
35K21.75 mi0.75 mi12703+13474-243474-2412851(Top 45%)4070(Top 33%)4070(Top 74%)
23M23.00 mi1.25 mi12550+1533423+513423+5110893(Top 38%)3180(Top 26%)3180(Top 58%)
24M24.00 mi1.00 mi12442+1083396+273396+2710698(Top 38%)3139(Top 26%)3139(Top 57%)
40K24.85 mi0.85 mi12318+1243368+283368+2810033(Top 35%)2945(Top 24%)2945(Top 54%)
25.2M25.20 mi0.35 mi12280+383360+83360+810372(Top 37%)3208(Top 26%)3208(Top 59%)
Finish26.22 mi1.02 mi12204+763354+63354+611238(Top 40%)3574(Top 29%)3574(Top 65%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 43%
×21story building
+97ft-345ft

Overall

12184

Females

3011

F18-39

3011

5K→10K

3.1 - 6.2 mi

Top 45%
×5story building
+79ft-138ft

Overall

12708

Females

3204

F18-39

3204

10K→15K

6.2 - 9.3 mi

Top 43%
×3story building
+67ft-78ft

Overall

12184

Females

3011

F18-39

3011

15K→20K

9.3 - 12.4 mi

Top 47%
×5story building
+106ft-86ft

Overall

13237

Females

3676

F18-39

3676

20K→Half

12.4 - 13.1 mi

Top 43%
×2story building
+19ft-37ft

Overall

12212

Females

3073

F18-39

3073

Half→25K

13.1 - 15.5 mi

Top 47%
×4story building
+66ft-88ft

Overall

13251

Females

3794

F18-39

3794

25K→30K

15.5 - 18.6 mi

Top 42%
×9story building
+181ft-148ft

Overall

11884

Females

3237

F18-39

3237

30K→20M

18.6 - 20.0 mi

Top 46%
×5story building
+64ft-50ft

Overall

13091

Females

4026

F18-39

4026

20M→21M

20.0 - 21.0 mi

Top 50%
×8story building
+106ft-24ft

Overall

14203

Females

4733

F18-39

4733

21M→35K

21.0 - 21.8 mi

Top 45%
×7story building
+17ft-86ft

Overall

12851

Females

4070

F18-39

4070

35K→23M

21.8 - 23.0 mi

Top 38%
×5story building
+23ft-63ft

Overall

10893

Females

3180

F18-39

3180

23M→24M

23.0 - 24.0 mi

Top 38%
×6story building
+12ft-82ft

Overall

10698

Females

3139

F18-39

3139

24M→40K

24.0 - 24.9 mi

Top 35%
×1story
+6ft-20ft

Overall

10033

Females

2945

F18-39

2945

40K→25.2M

24.9 - 25.2 mi

Top 37%
×1story
+13ft-16ft

Overall

10372

Females

3208

F18-39

3208

25.2M→Finish

25.2 - 26.2 mi

Top 40%
×2story building
+22ft-21ft

Overall

11238

Females

3574

F18-39

3574

Passing Analysis

Category:
Athletes Passed
2555
Passed By
1223
Net Change
+1332
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13536
5K → 10K537107+430#13536#13106
10K → 15K41967+352#13106#12754
15K → 20K172248-76#12754#12830
20K → Half5618+38#12830#12792
Half → 25K142191-49#12792#12841
25K → 30K344115+229#12841#12612
30K → 20M106120-14#12612#12626
20M → 21M91169-78#12626#12704
21M → 35K6564+1#12704#12703
35K → 23M18936+153#12703#12550
23M → 24M13628+108#12550#12442
24M → 40K14117+124#12442#12318
40K → 25.2M4911+38#12318#12280
25.2M → Finish10832+76#12280#12204
TOTALS25551223+1332
📊

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