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BOSTON MARATHON 2025

Tara Siesel

Bib: 18100•F

NC

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 49%
Gender (Female)
#0 / 12228
Top 35%
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:27
Rank: #15432
Start → 5K
24:27 | 7:52/mi
10K· 6.21 mi
49:02
Rank: #15603 (-171)
5K → 10K
24:35 | 7:55/mi
15K· 9.32 mi
1:14:06
Rank: #15924 (-321)
10K → 15K
25:04 | 8:04/mi
20K· 12.43 mi
1:38:53
Rank: #15615 (+309)
15K → 20K
24:47 | 7:59/mi
Half· 13.11 mi
1:44:17
Rank: #15579 (+36)
20K → Half
5:24 | 7:55/mi
25K· 15.53 mi
2:05:32
Rank: #16180 (-601)
Half → 25K
21:15 | 8:46/mi
30K· 18.64 mi
2:30:52
Rank: #15455 (+725)
25K → 30K
25:20 | 8:09/mi
20M
2:42:05
Rank: #15174 (+281)
30K → 20M
11:13 | 8:15/mi
21M
2:50:33
Rank: #14823 (+351)
20M → 21M
8:28 | 8:28/mi
35K· 21.75 mi
2:56:14
Rank: #14602 (+221)
21M → 35K
5:41 | 7:36/mi
23M
3:06:15
Rank: #14331 (+271)
35K → 23M
10:01 | 8:00/mi
24M
3:14:00
Rank: #14086 (+245)
23M → 24M
7:45 | 7:45/mi
40K· 24.85 mi
3:20:51
Rank: #13893 (+193)
24M → 40K
6:51 | 8:01/mi
25.2M
3:23:50
Rank: #13803 (+90)
40K → 25.2M
2:59 | 8:39/mi
Finish· 26.22 mi
3:32:31
Rank: #13898 (-95)
25.2M → Finish
8:41 | 8:31/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:17
Pace7:57 /mi
2nd Half
Distance13.11 mi
Time1:48:14
Pace8:15 /mi
📊Positive Split: 3.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:1324:277:5224:27
7:52
-
10K
6.21 mi11:39:4849:027:5324:35
7:55
+0:03
15K
9.32 mi12:04:521:14:067:5725:04
8:04
+0:09
20K
12.43 mi12:29:391:38:537:5724:47
7:59
-0:05
Half
13.11 mi12:35:031:44:177:575:24
7:55
-0:04
25K
15.53 mi12:56:182:05:328:0521:15
8:46
+0:51
30K
18.64 mi13:21:382:30:528:0625:20
8:09
-0:37
20M
20.00 mi13:32:512:42:058:0611:13
8:15
+0:06
21M
21.00 mi13:41:192:50:338:078:28
8:28
+0:13
35K
21.75 mi13:47:002:56:148:065:41
7:36
-0:52
23M
23.00 mi13:57:013:06:158:0610:01
8:00
+0:24
24M
24.00 mi14:04:463:14:008:057:45
7:45
-0:15
40K
24.85 mi14:11:373:20:518:056:51
8:01
+0:16
25.2M
25.20 mi14:14:363:23:508:052:59
8:39
+0:38
Finish
26.22 mi14:23:173:32:318:078:41
8:31
-0:08

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

7:36 /mi

Average Pace

8:07 /mi

Slowest Pace

8:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:51:08

81% of race

Time at Steady Pace

41:23

19% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:06 /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 mi11:15:1324:277:5224:27
7:52
#15432
10K
6.21 mi11:39:4849:027:5324:35
7:55
#15603
15K
9.32 mi12:04:521:14:067:5725:04
8:04
#15924
20K
12.43 mi12:29:391:38:537:5724:47
7:59
#15615
Half
13.11 mi12:35:031:44:177:575:24
7:55
#15579
25K
15.53 mi12:56:182:05:328:0521:15
8:46
#16180
30K
18.64 mi13:21:382:30:528:0625:20
8:09
#15455
20M
20.00 mi13:32:512:42:058:0611:13
8:15
#15174
21M
21.00 mi13:41:192:50:338:078:28
8:28
#14823
35K
21.75 mi13:47:002:56:148:065:41
7:36
#14602
23M
23.00 mi13:57:013:06:158:0610:01
8:00
#14331
24M
24.00 mi14:04:463:14:008:057:45
7:45
#14086
40K
24.85 mi14:11:373:20:518:056:51
8:01
#13893
25.2M
25.20 mi14:14:363:23:508:052:59
8:39
#13803
Finish
26.22 mi14:23:173:32:318:078:41
8:31
#13898
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi154324796479616542(Top 58%)5464(Top 45%)5464(Top 100%)
10K6.21 mi3.10 mi15603-1714898-1024898-10215756(Top 55%)4985(Top 41%)4985(Top 91%)
15K9.32 mi3.11 mi15924-3215097-1995097-19916542(Top 58%)5464(Top 45%)5464(Top 100%)
20K12.43 mi3.11 mi15615+3094936+1614936+16114763(Top 52%)4514(Top 37%)4514(Top 83%)
Half13.11 mi0.68 mi15579+364914+224914+2215253(Top 54%)4750(Top 39%)4750(Top 87%)
25K15.53 mi2.42 mi16180-6015264-3505264-35018750(Top 66%)6836(Top 56%)6836(Top 125%)
30K18.64 mi3.11 mi15455+7254921+3434921+34312502(Top 44%)3569(Top 29%)3569(Top 65%)
20M20.00 mi1.36 mi15174+2814797+1244797+12412212(Top 43%)3562(Top 29%)3562(Top 65%)
21M21.00 mi1.00 mi14823+3514622+1754622+17510296(Top 36%)2771(Top 23%)2771(Top 51%)
35K21.75 mi0.75 mi14602+2214507+1154507+1159385(Top 33%)2326(Top 19%)2326(Top 43%)
23M23.00 mi1.25 mi14331+2714393+1144393+11410075(Top 35%)2787(Top 23%)2787(Top 51%)
24M24.00 mi1.00 mi14086+2454306+874306+879501(Top 33%)2578(Top 21%)2578(Top 47%)
40K24.85 mi0.85 mi13893+1934238+684238+6810357(Top 36%)3121(Top 26%)3121(Top 57%)
25.2M25.20 mi0.35 mi13803+904199+394199+399836(Top 35%)2962(Top 24%)2962(Top 54%)
Finish26.22 mi1.02 mi13898-954267-684267-6816351(Top 58%)6211(Top 51%)6211(Top 114%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 58%
×21stories
+97ft-345ft

Overall

16542

Females

5464

F18-39

5464

5K→10K

3.1 - 6.2 mi

Top 55%
×5stories
+79ft-138ft

Overall

15756

Females

4985

F18-39

4985

10K→15K

6.2 - 9.3 mi

Top 58%
×3stories
+67ft-78ft

Overall

16542

Females

5464

F18-39

5464

15K→20K

9.3 - 12.4 mi

Top 52%
×5stories
+106ft-86ft

Overall

14763

Females

4514

F18-39

4514

20K→Half

12.4 - 13.1 mi

Top 54%
×2stories
+19ft-37ft

Overall

15253

Females

4750

F18-39

4750

Half→25K

13.1 - 15.5 mi

Top 66%
×4stories
+66ft-88ft

Overall

18750

Females

6836

F18-39

6836

25K→30K

15.5 - 18.6 mi

Top 44%
×9stories
+181ft-148ft

Overall

12502

Females

3569

F18-39

3569

30K→20M

18.6 - 20.0 mi

Top 43%
×5stories
+64ft-50ft

Overall

12212

Females

3562

F18-39

3562

20M→21M

20.0 - 21.0 mi

Top 36%
×8stories
+106ft-24ft

Overall

10296

Females

2771

F18-39

2771

21M→35K

21.0 - 21.8 mi

Top 33%
×7stories
+17ft-86ft

Overall

9385

Females

2326

F18-39

2326

35K→23M

21.8 - 23.0 mi

Top 35%
×5stories
+23ft-63ft

Overall

10075

Females

2787

F18-39

2787

23M→24M

23.0 - 24.0 mi

Top 33%
×6stories
+12ft-82ft

Overall

9501

Females

2578

F18-39

2578

24M→40K

24.0 - 24.9 mi

Top 36%
×1story
+6ft-20ft

Overall

10357

Females

3121

F18-39

3121

40K→25.2M

24.9 - 25.2 mi

Top 35%
×1story
+13ft-16ft

Overall

9836

Females

2962

F18-39

2962

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2stories
+22ft-21ft

Overall

16351

Females

6211

F18-39

6211

Passing Analysis

Category:
Athletes Passed
3295
Passed By
1761
Net Change
+1534
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15432
5K → 10K242413-171#15432#15603
10K → 15K113434-321#15603#15924
15K → 20K37768+309#15924#15615
20K → Half5721+36#15615#15579
Half → 25K54655-601#15579#16180
25K → 30K7294+725#16180#15455
30K → 20M29312+281#15455#15174
20M → 21M3576+351#15174#14823
21M → 35K2221+221#14823#14602
35K → 23M2776+271#14602#14331
23M → 24M2516+245#14331#14086
24M → 40K1952+193#14086#13893
40K → 25.2M900+90#13893#13803
25.2M → Finish38133-95#13803#13898
TOTALS32951761+1534
📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing