Boston Marathon logo
BOSTON MARATHON 2025

Tiffany Mcmillan

Bib: 27246•F

TX

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F45-49)
#0 / 1813
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
11:18/mi
35:07
↑ 97↓ 3451.5%
10K· 6.21 mi
11:31/mi
1:10:54
↑ 79↓ 1380.4%
15K· 9.32 mi
11:42/mi
1:47:14
↑ 67↓ 78
20K· 12.43 mi
11:57/mi
2:24:22
↑ 106↓ 860.1%
Half· 13.11 mi
11:41/mi
2:32:20
↑ 19↓ 370.5%
25K· 15.53 mi
12:12/mi
3:01:54
↑ 66↓ 880.2%
30K· 18.64 mi
13:16/mi
3:43:08
↑ 181↓ 1480.2%
20M
12:46/mi
4:00:29
↑ 64↓ 500.2%
21M
13:42/mi
4:14:11
↑ 106↓ 241.6%
35K· 21.75 mi
12:42/mi
4:23:41
↑ 17↓ 861.7%
23M
12:29/mi
4:39:19
↑ 23↓ 630.6%
24M
12:29/mi
4:51:48
↓ 821.3%
40K· 24.85 mi
12:50/mi
5:02:46
↓ 200.3%
25.2M
13:20/mi
5:07:22
↑ 13↓ 160.2%
Finish· 26.22 mi
11:44/mi
5:19:19
↑ 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
Time2:32:20
Pace11:37 /mi
2nd Half
Distance13.11 mi
Time2:46:59
Pace12:44 /mi
📊Positive Split: 9.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:57:2335:0711:1835:07
11:18
-
10K
6.21 mi12:33:101:10:5411:2535:47
11:31
+0:13
15K
9.32 mi13:09:301:47:1411:3036:20
11:42
+0:11
20K
12.43 mi13:46:382:24:2211:3737:08
11:57
+0:15
Half
13.11 mi13:54:362:32:2011:377:58
11:41
-0:16
25K
15.53 mi14:24:103:01:5411:4329:34
12:12
+0:31
30K
18.64 mi15:05:243:43:0811:5841:14
13:16
+1:04
20M
20.00 mi15:22:454:00:2912:0117:21
12:46
-0:30
21M
21.00 mi15:36:274:14:1112:0613:42
13:42
+0:56
35K
21.75 mi15:45:574:23:4112:079:30
12:42
-1:00
23M
23.00 mi16:01:354:39:1912:0915:38
12:29
-0:13
24M
24.00 mi16:14:044:51:4812:1012:29
12:29
0:00
40K
24.85 mi16:25:025:02:4612:1110:58
12:50
+0:21
25.2M
25.20 mi16:29:385:07:2212:124:36
13:20
+0:30
Finish
26.22 mi16:41:355:19:1912:1111:57
11:44
-1:36

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

11:18 /mi

Average Pace

12:11 /mi

Slowest Pace

13:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:44:17

51% of race

Time at Steady Pace

1:35:30

30% of race

Time at Slower Pace

59:32

19% of race

Average Pace: 12:11 /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 mi11:57:2335:0711:1835:07
11:18
#27848
10K
6.21 mi12:33:101:10:5411:2535:47
11:31
#27741
15K
9.32 mi13:09:301:47:1411:3036:20
11:42
#27628
20K
12.43 mi13:46:382:24:2211:3737:08
11:57
#27492
Half
13.11 mi13:54:362:32:2011:377:58
11:41
#27485
25K
15.53 mi14:24:103:01:5411:4329:34
12:12
#27336
30K
18.64 mi15:05:243:43:0811:5841:14
13:16
#27264
20M
20.00 mi15:22:454:00:2912:0117:21
12:46
#27207
21M
21.00 mi15:36:274:14:1112:0613:42
13:42
#27157
35K
21.75 mi15:45:574:23:4112:079:30
12:42
#27147
23M
23.00 mi16:01:354:39:1912:0915:38
12:29
#27104
24M
24.00 mi16:14:044:51:4812:1012:29
12:29
#27087
40K
24.85 mi16:25:025:02:4612:1110:58
12:50
#27057
25.2M
25.20 mi16:29:385:07:2212:124:36
13:20
#27041
Finish
26.22 mi16:41:355:19:1912:1111:57
11:44
#27024
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi27848118641186427409(Top 96%)11628(Top 95%)11628(Top 641%)
10K6.21 mi3.10 mi27741+10711792+7211792+7227616(Top 97%)11735(Top 96%)11735(Top 647%)
15K9.32 mi3.11 mi27628+11311735+5711735+5727409(Top 96%)11628(Top 95%)11628(Top 641%)
20K12.43 mi3.11 mi27492+13611656+7911656+7927067(Top 95%)11432(Top 93%)11432(Top 631%)
Half13.11 mi0.68 mi27485+711654+211654+227207(Top 96%)11534(Top 94%)11534(Top 636%)
25K15.53 mi2.42 mi27336+14911578+7611578+7626629(Top 94%)11209(Top 92%)11209(Top 618%)
30K18.64 mi3.11 mi27264+7211560+1811560+1826932(Top 95%)11452(Top 94%)11452(Top 632%)
20M20.00 mi1.36 mi27207+5711529+3111529+3126208(Top 92%)11122(Top 91%)11122(Top 613%)
21M21.00 mi1.00 mi27157+5011505+2411505+2425874(Top 91%)10981(Top 90%)10981(Top 606%)
35K21.75 mi0.75 mi27147+1011503+211503+226671(Top 94%)11429(Top 93%)11429(Top 630%)
23M23.00 mi1.25 mi27104+4311487+1611487+1625785(Top 91%)10993(Top 90%)10993(Top 606%)
24M24.00 mi1.00 mi27087+1711488-111488-126290(Top 93%)11265(Top 92%)11265(Top 621%)
40K24.85 mi0.85 mi27057+3011474+1411474+1426099(Top 92%)11189(Top 92%)11189(Top 617%)
25.2M25.20 mi0.35 mi27041+1611470+411470+425454(Top 90%)10925(Top 89%)10925(Top 603%)
Finish26.22 mi1.02 mi27024+1711464+611464+626444(Top 93%)11360(Top 93%)11360(Top 627%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 96%
×21story building
+97ft-345ft

Overall

27409

Females

11628

F45-49

11628

5K→10K

3.1 - 6.2 mi

Top 97%
×5story building
+79ft-138ft

Overall

27616

Females

11735

F45-49

11735

10K→15K

6.2 - 9.3 mi

Top 96%
×3story building
+67ft-78ft

Overall

27409

Females

11628

F45-49

11628

15K→20K

9.3 - 12.4 mi

Top 95%
×5story building
+106ft-86ft

Overall

27067

Females

11432

F45-49

11432

20K→Half

12.4 - 13.1 mi

Top 96%
×2story building
+19ft-37ft

Overall

27207

Females

11534

F45-49

11534

Half→25K

13.1 - 15.5 mi

Top 94%
×4story building
+66ft-88ft

Overall

26629

Females

11209

F45-49

11209

25K→30K

15.5 - 18.6 mi

Top 95%
×9story building
+181ft-148ft

Overall

26932

Females

11452

F45-49

11452

30K→20M

18.6 - 20.0 mi

Top 92%
×5story building
+64ft-50ft

Overall

26208

Females

11122

F45-49

11122

20M→21M

20.0 - 21.0 mi

Top 91%
×8story building
+106ft-24ft

Overall

25874

Females

10981

F45-49

10981

21M→35K

21.0 - 21.8 mi

Top 94%
×7story building
+17ft-86ft

Overall

26671

Females

11429

F45-49

11429

35K→23M

21.8 - 23.0 mi

Top 91%
×5story building
+23ft-63ft

Overall

25785

Females

10993

F45-49

10993

23M→24M

23.0 - 24.0 mi

Top 93%
×6story building
+12ft-82ft

Overall

26290

Females

11265

F45-49

11265

24M→40K

24.0 - 24.9 mi

Top 92%
×1story
+6ft-20ft

Overall

26099

Females

11189

F45-49

11189

40K→25.2M

24.9 - 25.2 mi

Top 90%
×1story
+13ft-16ft

Overall

25454

Females

10925

F45-49

10925

25.2M→Finish

25.2 - 26.2 mi

Top 93%
×2story building
+22ft-21ft

Overall

26444

Females

11360

F45-49

11360

Passing Analysis

Category:
Athletes Passed
1035
Passed By
211
Net Change
+824
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#27848
5K → 10K14639+107#27848#27741
10K → 15K15441+113#27741#27628
15K → 20K15519+136#27628#27492
20K → Half1912+7#27492#27485
Half → 25K1578+149#27485#27336
25K → 30K11341+72#27336#27264
30K → 20M614+57#27264#27207
20M → 21M555+50#27207#27157
21M → 35K177+10#27157#27147
35K → 23M496+43#27147#27104
23M → 24M269+17#27104#27087
24M → 40K4111+30#27087#27057
40K → 25.2M160+16#27057#27041
25.2M → Finish269+17#27041#27024
TOTALS1035211+824
📊

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