Boston Marathon logo
BOSTON MARATHON 2025

Tamara Simpson

Bib: 32073•F

CA

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

Start
0:00:00
Race begins
5K· 3.11 mi
34:59
Rank: #27813
Start → 5K
34:59 | 11:16/mi
10K· 6.21 mi
1:10:38
Rank: #27701 (+112)
5K → 10K
35:39 | 11:28/mi
15K· 9.32 mi
1:46:56
Rank: #27598 (+103)
10K → 15K
36:18 | 11:41/mi
20K· 12.43 mi
2:24:26
Rank: #27498 (+100)
15K → 20K
37:30 | 12:04/mi
Half· 13.11 mi
2:32:36
Rank: #27498
20K → Half
8:10 | 11:58/mi
25K· 15.53 mi
3:03:05
Rank: #27401 (+97)
Half → 25K
30:29 | 12:34/mi
30K· 18.64 mi
3:43:44
Rank: #27287 (+114)
25K → 30K
40:39 | 13:05/mi
20M
4:01:46
Rank: #27275 (+12)
30K → 20M
18:02 | 13:16/mi
21M
4:15:31
Rank: #27221 (+54)
20M → 21M
13:45 | 13:45/mi
35K· 21.75 mi
4:25:26
Rank: #27232 (-11)
21M → 35K
9:55 | 13:15/mi
23M
4:42:23
Rank: #27231 (+1)
35K → 23M
16:57 | 13:32/mi
24M
4:55:40
Rank: #27235 (-4)
23M → 24M
13:17 | 13:17/mi
40K· 24.85 mi
5:06:55
Rank: #27222 (+13)
24M → 40K
11:15 | 13:09/mi
25.2M
5:11:43
Rank: #27210 (+12)
40K → 25.2M
4:48 | 13:55/mi
Finish· 26.22 mi
5:23:47
Rank: #27192 (+18)
25.2M → Finish
12:04 | 11:50/mi

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
Time2:32:36
Pace11:38 /mi
2nd Half
Distance13.11 mi
Time2:51:11
Pace13:04 /mi
📊Positive Split: 12.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:59:2534:5911:1634:59
11:16
-
10K
6.21 mi12:35:041:10:3811:2235:39
11:28
+0:12
15K
9.32 mi13:11:221:46:5611:2836:18
11:41
+0:13
20K
12.43 mi13:48:522:24:2611:3737:30
12:04
+0:23
Half
13.11 mi13:57:022:32:3611:388:10
11:58
-0:06
25K
15.53 mi14:27:313:03:0511:4730:29
12:34
+0:36
30K
18.64 mi15:08:103:43:4412:0040:39
13:05
+0:31
20M
20.00 mi15:26:124:01:4612:0518:02
13:16
+0:11
21M
21.00 mi15:39:574:15:3112:1013:45
13:45
+0:29
35K
21.75 mi15:49:524:25:2612:129:55
13:15
-0:30
23M
23.00 mi16:06:494:42:2312:1716:57
13:32
+0:17
24M
24.00 mi16:20:064:55:4012:1913:17
13:17
-0:15
40K
24.85 mi16:31:215:06:5512:2111:15
13:09
-0:08
25.2M
25.20 mi16:36:095:11:4312:224:48
13:55
+0:46
Finish
26.22 mi16:48:135:23:4712:2112:04
11:50
-2:05

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

11:16 /mi

Average Pace

12:21 /mi

Slowest Pace

13:55 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:15:09

60% of race

Time at Steady Pace

1:33:08

29% of race

Time at Slower Pace

35:30

11% of race

Average Pace: 12:21 /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 mi11:59:2534:5911:1634:59
11:16
#27813
10K
6.21 mi12:35:041:10:3811:2235:39
11:28
#27701
15K
9.32 mi13:11:221:46:5611:2836:18
11:41
#27598
20K
12.43 mi13:48:522:24:2611:3737:30
12:04
#27498
Half
13.11 mi13:57:022:32:3611:388:10
11:58
#27498
25K
15.53 mi14:27:313:03:0511:4730:29
12:34
#27401
30K
18.64 mi15:08:103:43:4412:0040:39
13:05
#27287
20M
20.00 mi15:26:124:01:4612:0518:02
13:16
#27275
21M
21.00 mi15:39:574:15:3112:1013:45
13:45
#27221
35K
21.75 mi15:49:524:25:2612:129:55
13:15
#27232
23M
23.00 mi16:06:494:42:2312:1716:57
13:32
#27231
24M
24.00 mi16:20:064:55:4012:1913:17
13:17
#27235
40K
24.85 mi16:31:215:06:5512:2111:15
13:09
#27222
25.2M
25.20 mi16:36:095:11:4312:224:48
13:55
#27210
Finish
26.22 mi16:48:135:23:4712:2112:04
11:50
#27192
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi27813118401184027403(Top 96%)11624(Top 95%)11624(Top 1863%)
10K6.21 mi3.10 mi27701+11211768+7211768+7227573(Top 97%)11709(Top 96%)11709(Top 1876%)
15K9.32 mi3.11 mi27598+10311717+5111717+5127403(Top 96%)11624(Top 95%)11624(Top 1863%)
20K12.43 mi3.11 mi27498+10011660+5711660+5727172(Top 96%)11499(Top 94%)11499(Top 1843%)
Half13.11 mi0.68 mi27498116601166027432(Top 97%)11671(Top 95%)11671(Top 1870%)
25K15.53 mi2.42 mi27401+9711617+4311617+4326976(Top 95%)11411(Top 93%)11411(Top 1829%)
30K18.64 mi3.11 mi27287+11411577+4011577+4026762(Top 94%)11365(Top 93%)11365(Top 1821%)
20M20.00 mi1.36 mi27275+1211568+911568+926694(Top 94%)11399(Top 93%)11399(Top 1827%)
21M21.00 mi1.00 mi27221+5411544+2411544+2425941(Top 91%)11017(Top 90%)11017(Top 1766%)
35K21.75 mi0.75 mi27232-1111559-1511559-1527166(Top 96%)11671(Top 95%)11671(Top 1870%)
23M23.00 mi1.25 mi27231+111565-611565-626905(Top 95%)11555(Top 94%)11555(Top 1852%)
24M24.00 mi1.00 mi27235-411574-911574-927129(Top 96%)11711(Top 96%)11711(Top 1877%)
40K24.85 mi0.85 mi27222+1311569+511569+526441(Top 93%)11353(Top 93%)11353(Top 1819%)
25.2M25.20 mi0.35 mi27210+1211561+811561+826187(Top 92%)11283(Top 92%)11283(Top 1808%)
Finish26.22 mi1.02 mi27192+18115611156126599(Top 94%)11434(Top 94%)11434(Top 1832%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 96%
×21stories
+97ft-345ft

Overall

27403

Females

11624

F60-64

11624

5K→10K

3.1 - 6.2 mi

Top 97%
×5stories
+79ft-138ft

Overall

27573

Females

11709

F60-64

11709

10K→15K

6.2 - 9.3 mi

Top 96%
×3stories
+67ft-78ft

Overall

27403

Females

11624

F60-64

11624

15K→20K

9.3 - 12.4 mi

Top 96%
×5stories
+106ft-86ft

Overall

27172

Females

11499

F60-64

11499

20K→Half

12.4 - 13.1 mi

Top 97%
×2stories
+19ft-37ft

Overall

27432

Females

11671

F60-64

11671

Half→25K

13.1 - 15.5 mi

Top 95%
×4stories
+66ft-88ft

Overall

26976

Females

11411

F60-64

11411

25K→30K

15.5 - 18.6 mi

Top 94%
×9stories
+181ft-148ft

Overall

26762

Females

11365

F60-64

11365

30K→20M

18.6 - 20.0 mi

Top 94%
×5stories
+64ft-50ft

Overall

26694

Females

11399

F60-64

11399

20M→21M

20.0 - 21.0 mi

Top 91%
×8stories
+106ft-24ft

Overall

25941

Females

11017

F60-64

11017

21M→35K

21.0 - 21.8 mi

Top 96%
×7stories
+17ft-86ft

Overall

27166

Females

11671

F60-64

11671

35K→23M

21.8 - 23.0 mi

Top 95%
×5stories
+23ft-63ft

Overall

26905

Females

11555

F60-64

11555

23M→24M

23.0 - 24.0 mi

Top 96%
×6stories
+12ft-82ft

Overall

27129

Females

11711

F60-64

11711

24M→40K

24.0 - 24.9 mi

Top 93%
×1story
+6ft-20ft

Overall

26441

Females

11353

F60-64

11353

40K→25.2M

24.9 - 25.2 mi

Top 92%
×1story
+13ft-16ft

Overall

26187

Females

11283

F60-64

11283

25.2M→Finish

25.2 - 26.2 mi

Top 94%
×2stories
+22ft-21ft

Overall

26599

Females

11434

F60-64

11434

Passing Analysis

Category:
Athletes Passed
917
Passed By
296
Net Change
+621
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#27813
5K → 10K15139+112#27813#27701
10K → 15K14138+103#27701#27598
15K → 20K13131+100#27598#27498
20K → Half14140#27498#27498
Half → 25K11720+97#27498#27401
25K → 30K14127+114#27401#27287
30K → 20M3018+12#27287#27275
20M → 21M573+54#27275#27221
21M → 35K1728-11#27221#27232
35K → 23M2928+1#27232#27231
23M → 24M1721-4#27231#27235
24M → 40K2411+13#27235#27222
40K → 25.2M186+12#27222#27210
25.2M → Finish3012+18#27210#27192
TOTALS917296+621
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

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
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing