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BOSTON MARATHON 2025

Kim Thomas

Bib: 9221•F

ON

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0:00
/ mi
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Overall
#0 / 28404
Top 37%
Gender (Female)
#0 / 12228
Top 20%
Division (F18-39)
#0 / 5469
Top 35%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:09
Rank: #14576
Start → 5K
24:09 | 7:46/mi
10K· 6.21 mi
48:21
Rank: #14597 (-21)
5K → 10K
24:12 | 7:47/mi
15K· 9.32 mi
1:12:24
Rank: #14355 (+242)
10K → 15K
24:03 | 7:44/mi
20K· 12.43 mi
1:36:43
Rank: #14101 (+254)
15K → 20K
24:19 | 7:50/mi
Half· 13.11 mi
1:42:01
Rank: #14098 (+3)
20K → Half
5:18 | 7:46/mi
25K· 15.53 mi
2:00:56
Rank: #13762 (+336)
Half → 25K
18:55 | 7:48/mi
30K· 18.64 mi
2:25:15
Rank: #13011 (+751)
25K → 30K
24:19 | 7:50/mi
20M
2:35:26
Rank: #12486 (+525)
30K → 20M
10:11 | 7:30/mi
21M
2:43:12
Rank: #12072 (+414)
20M → 21M
7:46 | 7:46/mi
35K· 21.75 mi
2:48:47
Rank: #11901 (+171)
21M → 35K
5:35 | 7:28/mi
23M
2:58:05
Rank: #11493 (+408)
35K → 23M
9:18 | 7:26/mi
24M
3:05:22
Rank: #11188 (+305)
23M → 24M
7:17 | 7:17/mi
40K· 24.85 mi
3:11:34
Rank: #10912 (+276)
24M → 40K
6:12 | 7:15/mi
25.2M
3:14:11
Rank: #10780 (+132)
40K → 25.2M
2:37 | 7:35/mi
Finish· 26.22 mi
3:21:00
Rank: #10432 (+348)
25.2M → Finish
6:49 | 6:41/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:42:01
Pace7:47 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:38:59
Pace7:33 /mi
📊Negative Split: 3.0% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:1824:097:4624:09
7:46
-
10K
6.21 mi11:19:3048:217:4724:12
7:47
+0:01
15K
9.32 mi11:43:331:12:247:4624:03
7:44
-0:03
20K
12.43 mi12:07:521:36:437:4724:19
7:50
+0:06
Half
13.11 mi12:13:101:42:017:475:18
7:46
-0:04
25K
15.53 mi12:32:052:00:567:4718:55
7:48
+0:02
30K
18.64 mi12:56:242:25:157:4824:19
7:50
+0:02
20M
20.00 mi13:06:352:35:267:4610:11
7:30
-0:20
21M
21.00 mi13:14:212:43:127:467:46
7:46
+0:16
35K
21.75 mi13:19:562:48:477:465:35
7:28
-0:18
23M
23.00 mi13:29:142:58:057:459:18
7:26
-0:02
24M
24.00 mi13:36:313:05:227:437:17
7:17
-0:09
40K
24.85 mi13:42:433:11:347:426:12
7:15
-0:02
25.2M
25.20 mi13:45:203:14:117:422:37
7:35
+0:20
Finish
26.22 mi13:52:093:21:007:406:49
6:41
-0:54

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

6:41 /mi

Average Pace

7:40 /mi

Slowest Pace

7:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

20:18

10% of race

Time at Steady Pace

3:00:42

90% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:40 /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 mi10:55:1824:097:4624:09
7:46
#14576
10K
6.21 mi11:19:3048:217:4724:12
7:47
#14597
15K
9.32 mi11:43:331:12:247:4624:03
7:44
#14355
20K
12.43 mi12:07:521:36:437:4724:19
7:50
#14101
Half
13.11 mi12:13:101:42:017:475:18
7:46
#14098
25K
15.53 mi12:32:052:00:567:4718:55
7:48
#13762
30K
18.64 mi12:56:242:25:157:4824:19
7:50
#13011
20M
20.00 mi13:06:352:35:267:4610:11
7:30
#12486
21M
21.00 mi13:14:212:43:127:467:46
7:46
#12072
35K
21.75 mi13:19:562:48:477:465:35
7:28
#11901
23M
23.00 mi13:29:142:58:057:459:18
7:26
#11493
24M
24.00 mi13:36:313:05:227:437:17
7:17
#11188
40K
24.85 mi13:42:433:11:347:426:12
7:15
#10912
25.2M
25.20 mi13:45:203:14:117:422:37
7:35
#10780
Finish
26.22 mi13:52:093:21:007:406:49
6:41
#10432
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi145764260426013864(Top 49%)3927(Top 32%)3927(Top 72%)
10K6.21 mi3.10 mi14597-214294-344294-3414702(Top 52%)4359(Top 36%)4359(Top 80%)
15K9.32 mi3.11 mi14355+2424171+1234171+12313864(Top 49%)3927(Top 32%)3927(Top 72%)
20K12.43 mi3.11 mi14101+2544059+1124059+11213490(Top 47%)3806(Top 31%)3806(Top 70%)
Half13.11 mi0.68 mi14098+34059405913985(Top 49%)4018(Top 33%)4018(Top 73%)
25K15.53 mi2.42 mi13762+3363903+1563903+15612370(Top 44%)3310(Top 27%)3310(Top 61%)
30K18.64 mi3.11 mi13011+7513558+3453558+34510142(Top 36%)2351(Top 19%)2351(Top 43%)
20M20.00 mi1.36 mi12486+5253297+2613297+2617007(Top 25%)1163(Top 10%)1163(Top 21%)
21M21.00 mi1.00 mi12072+4143107+1903107+1906045(Top 21%)953(Top 8%)953(Top 17%)
35K21.75 mi0.75 mi11901+1713041+663041+668428(Top 30%)1869(Top 15%)1869(Top 34%)
23M23.00 mi1.25 mi11493+4082879+1622879+1626241(Top 22%)1120(Top 9%)1120(Top 20%)
24M24.00 mi1.00 mi11188+3052754+1252754+1256367(Top 22%)1225(Top 10%)1225(Top 22%)
40K24.85 mi0.85 mi10912+2762646+1082646+1085431(Top 19%)925(Top 8%)925(Top 17%)
25.2M25.20 mi0.35 mi10780+1322585+612585+613933(Top 14%)567(Top 5%)567(Top 10%)
Finish26.22 mi1.02 mi10432+3482433+1522433+1523850(Top 14%)521(Top 4%)521(Top 10%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 49%
×21stories
+97ft-345ft

Overall

13864

Females

3927

F18-39

3927

5K→10K

3.1 - 6.2 mi

Top 52%
×5stories
+79ft-138ft

Overall

14702

Females

4359

F18-39

4359

10K→15K

6.2 - 9.3 mi

Top 49%
×3stories
+67ft-78ft

Overall

13864

Females

3927

F18-39

3927

15K→20K

9.3 - 12.4 mi

Top 47%
×5stories
+106ft-86ft

Overall

13490

Females

3806

F18-39

3806

20K→Half

12.4 - 13.1 mi

Top 49%
×2stories
+19ft-37ft

Overall

13985

Females

4018

F18-39

4018

Half→25K

13.1 - 15.5 mi

Top 44%
×4stories
+66ft-88ft

Overall

12370

Females

3310

F18-39

3310

25K→30K

15.5 - 18.6 mi

Top 36%
×9stories
+181ft-148ft

Overall

10142

Females

2351

F18-39

2351

30K→20M

18.6 - 20.0 mi

Top 25%
×5stories
+64ft-50ft

Overall

7007

Females

1163

F18-39

1163

20M→21M

20.0 - 21.0 mi

Top 21%
×8stories
+106ft-24ft

Overall

6045

Females

953

F18-39

953

21M→35K

21.0 - 21.8 mi

Top 30%
×7stories
+17ft-86ft

Overall

8428

Females

1869

F18-39

1869

35K→23M

21.8 - 23.0 mi

Top 22%
×5stories
+23ft-63ft

Overall

6241

Females

1120

F18-39

1120

23M→24M

23.0 - 24.0 mi

Top 22%
×6stories
+12ft-82ft

Overall

6367

Females

1225

F18-39

1225

24M→40K

24.0 - 24.9 mi

Top 19%
×1story
+6ft-20ft

Overall

5431

Females

925

F18-39

925

40K→25.2M

24.9 - 25.2 mi

Top 14%
×1story
+13ft-16ft

Overall

3933

Females

567

F18-39

567

25.2M→Finish

25.2 - 26.2 mi

Top 14%
×2stories
+22ft-21ft

Overall

3850

Females

521

F18-39

521

Passing Analysis

Category:
Athletes Passed
4695
Passed By
551
Net Change
+4144
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14576
5K → 10K286307-21#14576#14597
10K → 15K32482+242#14597#14355
15K → 20K34086+254#14355#14101
20K → Half3229+3#14101#14098
Half → 25K36125+336#14098#13762
25K → 30K76110+751#13762#13011
30K → 20M5261+525#13011#12486
20M → 21M4151+414#12486#12072
21M → 35K1732+171#12072#11901
35K → 23M4091+408#11901#11493
23M → 24M3094+305#11493#11188
24M → 40K2771+276#11188#10912
40K → 25.2M1320+132#10912#10780
25.2M → Finish3502+348#10780#10432
TOTALS4695551+4144
📊

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