Boston Marathon logo
BOSTON MARATHON 2025

Tammy Nash

Bib: 25144•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 (F60-64)
#0 / 624
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
10:01/mi
31:06
↑ 97↓ 3451.5%
10K· 6.21 mi
10:20/mi
1:03:12
↑ 79↓ 1380.4%
15K· 9.32 mi
10:56/mi
1:37:10
↑ 67↓ 78
20K· 12.43 mi
12:19/mi
2:15:26
↑ 106↓ 860.1%
Half· 13.11 mi
11:22/mi
2:23:11
↑ 19↓ 370.5%
25K· 15.53 mi
12:31/mi
2:53:32
↑ 66↓ 880.2%
30K· 18.64 mi
13:53/mi
3:36:40
↑ 181↓ 1480.2%
20M
13:39/mi
3:55:13
↑ 64↓ 500.2%
21M
15:13/mi
4:10:26
↑ 106↓ 241.6%
35K· 21.75 mi
12:46/mi
4:19:59
↑ 17↓ 861.7%
23M
13:00/mi
4:36:15
↑ 23↓ 630.6%
24M
12:50/mi
4:49:05
↓ 821.3%
40K· 24.85 mi
13:02/mi
5:00:14
↓ 200.3%
25.2M
13:41/mi
5:04:57
↑ 13↓ 160.2%
Finish· 26.22 mi
11:53/mi
5:17:04
↑ 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
Time2:23:11
Pace10:55 /mi
2nd Half
Distance13.11 mi
Time2:53:53
Pace13:16 /mi
📊Positive Split: 21.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:31:5831:0610:0131:06
10:01
-
10K
6.21 mi12:04:041:03:1210:1032:06
10:20
+0:19
15K
9.32 mi12:38:021:37:1010:2533:58
10:56
+0:36
20K
12.43 mi13:16:182:15:2610:5438:16
12:19
+1:23
Half
13.11 mi13:24:032:23:1110:557:45
11:22
-0:57
25K
15.53 mi13:54:242:53:3211:1030:21
12:31
+1:09
30K
18.64 mi14:37:323:36:4011:3743:08
13:53
+1:22
20M
20.00 mi14:56:053:55:1311:4618:33
13:39
-0:14
21M
21.00 mi15:11:184:10:2611:5615:13
15:13
+1:34
35K
21.75 mi15:20:514:19:5911:579:33
12:46
-2:27
23M
23.00 mi15:37:074:36:1512:0116:16
13:00
+0:14
24M
24.00 mi15:49:574:49:0512:0312:50
12:50
-0:10
40K
24.85 mi16:01:065:00:1412:0511:09
13:02
+0:12
25.2M
25.20 mi16:05:495:04:5712:064:43
13:41
+0:39
Finish
26.22 mi16:17:565:17:0412:0612:07
11:53
-1:48

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

10:01 /mi

Average Pace

12:06 /mi

Slowest Pace

15:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:57:02

37% of race

Time at Steady Pace

1:58:25

37% of race

Time at Slower Pace

1:21:37

26% of race

Average Pace: 12:06 /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 mi11:31:5831:0610:0131:06
10:01
#25595
10K
6.21 mi12:04:041:03:1210:1032:06
10:20
#25853
15K
9.32 mi12:38:021:37:1010:2533:58
10:56
#26133
20K
12.43 mi13:16:182:15:2610:5438:16
12:19
#26635
Half
13.11 mi13:24:032:23:1110:557:45
11:22
#26653
25K
15.53 mi13:54:242:53:3211:1030:21
12:31
#26745
30K
18.64 mi14:37:323:36:4011:3743:08
13:53
#26929
20M
20.00 mi14:56:053:55:1311:4618:33
13:39
#26957
21M
21.00 mi15:11:184:10:2611:5615:13
15:13
#26990
35K
21.75 mi15:20:514:19:5911:579:33
12:46
#27007
23M
23.00 mi15:37:074:36:1512:0116:16
13:00
#26991
24M
24.00 mi15:49:574:49:0512:0312:50
12:50
#26983
40K
24.85 mi16:01:065:00:1412:0511:09
13:02
#26958
25.2M
25.20 mi16:05:495:04:5712:064:43
13:41
#26946
Finish
26.22 mi16:17:565:17:0412:0612:07
11:53
#26939
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi25595105361053626589(Top 94%)11121(Top 91%)11121(Top 1782%)
10K6.21 mi3.10 mi25853-25810685-14910685-14925973(Top 91%)10777(Top 88%)10777(Top 1727%)
15K9.32 mi3.11 mi26133-28010853-16810853-16826589(Top 94%)11121(Top 91%)11121(Top 1782%)
20K12.43 mi3.11 mi26635-50211140-28711140-28727367(Top 96%)11618(Top 95%)11618(Top 1862%)
Half13.11 mi0.68 mi26653-1811152-1211152-1226927(Top 95%)11372(Top 93%)11372(Top 1822%)
25K15.53 mi2.42 mi26745-9211226-7411226-7426938(Top 95%)11390(Top 93%)11390(Top 1825%)
30K18.64 mi3.11 mi26929-18411352-12611352-12627421(Top 97%)11731(Top 96%)11731(Top 1880%)
20M20.00 mi1.36 mi26957-2811377-2511377-2527031(Top 95%)11579(Top 95%)11579(Top 1856%)
21M21.00 mi1.00 mi26990-3311405-2811405-2827328(Top 96%)11739(Top 96%)11739(Top 1881%)
35K21.75 mi0.75 mi27007-1711421-1611421-1626731(Top 94%)11458(Top 94%)11458(Top 1836%)
23M23.00 mi1.25 mi26991+1611420+111420+126358(Top 93%)11278(Top 92%)11278(Top 1807%)
24M24.00 mi1.00 mi26983+811421-111421-126662(Top 94%)11455(Top 94%)11455(Top 1836%)
40K24.85 mi0.85 mi26958+2511418+311418+326325(Top 93%)11304(Top 92%)11304(Top 1812%)
25.2M25.20 mi0.35 mi26946+1211414+411414+425875(Top 91%)11125(Top 91%)11125(Top 1783%)
Finish26.22 mi1.02 mi26939+7114141141426659(Top 94%)11456(Top 94%)11456(Top 1836%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 94%
×21story building
+97ft-345ft

Overall

26589

Females

11121

F60-64

11121

5K→10K

3.1 - 6.2 mi

Top 91%
×5story building
+79ft-138ft

Overall

25973

Females

10777

F60-64

10777

10K→15K

6.2 - 9.3 mi

Top 94%
×3story building
+67ft-78ft

Overall

26589

Females

11121

F60-64

11121

15K→20K

9.3 - 12.4 mi

Top 96%
×5story building
+106ft-86ft

Overall

27367

Females

11618

F60-64

11618

20K→Half

12.4 - 13.1 mi

Top 95%
×2story building
+19ft-37ft

Overall

26927

Females

11372

F60-64

11372

Half→25K

13.1 - 15.5 mi

Top 95%
×4story building
+66ft-88ft

Overall

26938

Females

11390

F60-64

11390

25K→30K

15.5 - 18.6 mi

Top 97%
×9story building
+181ft-148ft

Overall

27421

Females

11731

F60-64

11731

30K→20M

18.6 - 20.0 mi

Top 95%
×5story building
+64ft-50ft

Overall

27031

Females

11579

F60-64

11579

20M→21M

20.0 - 21.0 mi

Top 96%
×8story building
+106ft-24ft

Overall

27328

Females

11739

F60-64

11739

21M→35K

21.0 - 21.8 mi

Top 94%
×7story building
+17ft-86ft

Overall

26731

Females

11458

F60-64

11458

35K→23M

21.8 - 23.0 mi

Top 93%
×5story building
+23ft-63ft

Overall

26358

Females

11278

F60-64

11278

23M→24M

23.0 - 24.0 mi

Top 94%
×6story building
+12ft-82ft

Overall

26662

Females

11455

F60-64

11455

24M→40K

24.0 - 24.9 mi

Top 93%
×1story
+6ft-20ft

Overall

26325

Females

11304

F60-64

11304

40K→25.2M

24.9 - 25.2 mi

Top 91%
×1story
+13ft-16ft

Overall

25875

Females

11125

F60-64

11125

25.2M→Finish

25.2 - 26.2 mi

Top 94%
×2story building
+22ft-21ft

Overall

26659

Females

11456

F60-64

11456

Passing Analysis

Category:
Athletes Passed
460
Passed By
1804
Net Change
-1344
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25595
5K → 10K111369-258#25595#25853
10K → 15K54334-280#25853#26133
15K → 20K21523-502#26133#26635
20K → Half1735-18#26635#26653
Half → 25K48140-92#26653#26745
25K → 30K38222-184#26745#26929
30K → 20M2452-28#26929#26957
20M → 21M1144-33#26957#26990
21M → 35K825-17#26990#27007
35K → 23M3014+16#27007#26991
23M → 24M2921+8#26991#26983
24M → 40K327+25#26983#26958
40K → 25.2M153+12#26958#26946
25.2M → Finish2215+7#26946#26939
TOTALS4601804-1344
📊

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