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BOSTON MARATHON 2025

Teresa Webb

Bib: 21661•F

WA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 43%
Masters (Masters Women)
#0 / 6759
Top 29%
Division (F45-49)
#0 / 1813
Top 35%
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
7:55/mi
24:37
↑ 97↓ 3451.5%
10K· 6.21 mi
7:53/mi
49:06
↑ 79↓ 1380.4%
15K· 9.32 mi
7:54/mi
1:13:40
↑ 67↓ 78
20K· 12.43 mi
7:58/mi
1:38:25
↑ 106↓ 860.1%
Half· 13.11 mi
7:58/mi
1:43:51
↑ 19↓ 370.5%
25K· 15.53 mi
7:58/mi
2:03:11
↑ 66↓ 880.2%
30K· 18.64 mi
8:29/mi
2:29:31
↑ 181↓ 1480.2%
20M
8:53/mi
2:41:35
↑ 64↓ 500.2%
21M
9:25/mi
2:51:00
↑ 106↓ 241.6%
35K· 21.75 mi
8:24/mi
2:57:17
↑ 17↓ 861.7%
23M
8:46/mi
3:08:15
↑ 23↓ 630.6%
24M
9:28/mi
3:17:43
↓ 821.3%
40K· 24.85 mi
9:58/mi
3:26:14
↓ 200.3%
25.2M
11:27/mi
3:30:11
↑ 13↓ 160.2%
Finish· 26.22 mi
8:42/mi
3:39:03
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:51
Pace7:55 /mi
2nd Half
Distance13.11 mi
Time1:55:12
Pace8:47 /mi
📊Positive Split: 10.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:5124:377:5524:37
7:55
-
10K
6.21 mi11:43:2049:067:5424:29
7:53
-0:02
15K
9.32 mi12:07:541:13:407:5424:34
7:54
+0:01
20K
12.43 mi12:32:391:38:257:5524:45
7:58
+0:04
Half
13.11 mi12:38:051:43:517:555:26
7:58
0:00
25K
15.53 mi12:57:252:03:117:5619:20
7:58
0:00
30K
18.64 mi13:23:452:29:318:0126:20
8:29
+0:31
20M
20.00 mi13:35:492:41:358:0512:04
8:53
+0:24
21M
21.00 mi13:45:142:51:008:099:25
9:25
+0:32
35K
21.75 mi13:51:312:57:178:096:17
8:24
-1:01
23M
23.00 mi14:02:293:08:158:1110:58
8:46
+0:22
24M
24.00 mi14:11:573:17:438:149:28
9:28
+0:42
40K
24.85 mi14:20:283:26:148:188:31
9:58
+0:30
25.2M
25.20 mi14:24:253:30:118:203:57
11:27
+1:29
Finish
26.22 mi14:33:173:39:038:228:52
8:42
-2:45

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

7:53 /mi

Average Pace

8:22 /mi

Slowest Pace

11:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:03:11

56% of race

Time at Steady Pace

1:04:31

29% of race

Time at Slower Pace

31:21

14% of race

Average Pace: 8:21 /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 mi11:18:5124:377:5524:37
7:55
#15954
10K
6.21 mi11:43:2049:067:5424:29
7:53
#15701
15K
9.32 mi12:07:541:13:407:5424:34
7:54
#15526
20K
12.43 mi12:32:391:38:257:5524:45
7:58
#15266
Half
13.11 mi12:38:051:43:517:555:26
7:58
#15299
25K
15.53 mi12:57:252:03:117:5619:20
7:58
#14994
30K
18.64 mi13:23:452:29:318:0126:20
8:29
#14909
20M
20.00 mi13:35:492:41:358:0512:04
8:53
#14978
21M
21.00 mi13:45:142:51:008:099:25
9:25
#14977
35K
21.75 mi13:51:312:57:178:096:17
8:24
#14965
23M
23.00 mi14:02:293:08:158:1110:58
8:46
#14908
24M
24.00 mi14:11:573:17:438:149:28
9:28
#15172
40K
24.85 mi14:20:283:26:148:188:31
9:58
#15431
25.2M
25.20 mi14:24:253:30:118:203:57
11:27
#15560
Finish
26.22 mi14:33:173:39:038:228:52
8:42
#15627
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi159545120512015319(Top 54%)4763(Top 39%)4763(Top 263%)
10K6.21 mi3.10 mi15701+2534961+1594961+15915539(Top 55%)4855(Top 40%)4855(Top 268%)
15K9.32 mi3.11 mi15526+1754864+974864+9715319(Top 54%)4763(Top 39%)4763(Top 263%)
20K12.43 mi3.11 mi15266+2604733+1314733+13114685(Top 52%)4478(Top 37%)4478(Top 247%)
Half13.11 mi0.68 mi15299-334750-174750-1715713(Top 55%)5033(Top 41%)5033(Top 278%)
25K15.53 mi2.42 mi14994+3054611+1394611+13913655(Top 48%)4041(Top 33%)4041(Top 223%)
30K18.64 mi3.11 mi14909+854622-114622-1114612(Top 51%)4689(Top 38%)4689(Top 259%)
20M20.00 mi1.36 mi14978-694687-654687-6516121(Top 57%)5663(Top 46%)5663(Top 312%)
21M21.00 mi1.00 mi14977+14706-194706-1915722(Top 55%)5562(Top 45%)5562(Top 307%)
35K21.75 mi0.75 mi14965+124714-84714-814883(Top 52%)5172(Top 42%)5172(Top 285%)
23M23.00 mi1.25 mi14908+574710+44710+414899(Top 52%)5279(Top 43%)5279(Top 291%)
24M24.00 mi1.00 mi15172-2644905-1954905-19519510(Top 69%)7824(Top 64%)7824(Top 432%)
40K24.85 mi0.85 mi15431-2595086-1815086-18120351(Top 72%)8331(Top 68%)8331(Top 460%)
25.2M25.20 mi0.35 mi15560-1295173-875173-8721945(Top 77%)9117(Top 75%)9117(Top 503%)
Finish26.22 mi1.02 mi15627-675227-545227-5417481(Top 62%)6803(Top 56%)6803(Top 375%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21story building
+97ft-345ft

Overall

15319

Females

4763

F45-49

4763

5K→10K

3.1 - 6.2 mi

Top 55%
×5story building
+79ft-138ft

Overall

15539

Females

4855

F45-49

4855

10K→15K

6.2 - 9.3 mi

Top 54%
×3story building
+67ft-78ft

Overall

15319

Females

4763

F45-49

4763

15K→20K

9.3 - 12.4 mi

Top 52%
×5story building
+106ft-86ft

Overall

14685

Females

4478

F45-49

4478

20K→Half

12.4 - 13.1 mi

Top 55%
×2story building
+19ft-37ft

Overall

15713

Females

5033

F45-49

5033

Half→25K

13.1 - 15.5 mi

Top 48%
×4story building
+66ft-88ft

Overall

13655

Females

4041

F45-49

4041

25K→30K

15.5 - 18.6 mi

Top 51%
×9story building
+181ft-148ft

Overall

14612

Females

4689

F45-49

4689

30K→20M

18.6 - 20.0 mi

Top 57%
×5story building
+64ft-50ft

Overall

16121

Females

5663

F45-49

5663

20M→21M

20.0 - 21.0 mi

Top 55%
×8story building
+106ft-24ft

Overall

15722

Females

5562

F45-49

5562

21M→35K

21.0 - 21.8 mi

Top 52%
×7story building
+17ft-86ft

Overall

14883

Females

5172

F45-49

5172

35K→23M

21.8 - 23.0 mi

Top 52%
×5story building
+23ft-63ft

Overall

14899

Females

5279

F45-49

5279

23M→24M

23.0 - 24.0 mi

Top 69%
×6story building
+12ft-82ft

Overall

19510

Females

7824

F45-49

7824

24M→40K

24.0 - 24.9 mi

Top 72%
×1story
+6ft-20ft

Overall

20351

Females

8331

F45-49

8331

40K→25.2M

24.9 - 25.2 mi

Top 77%
×1story
+13ft-16ft

Overall

21945

Females

9117

F45-49

9117

25.2M→Finish

25.2 - 26.2 mi

Top 62%
×2story building
+22ft-21ft

Overall

17481

Females

6803

F45-49

6803

Passing Analysis

Category:
Athletes Passed
2263
Passed By
1936
Net Change
+327
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15954
5K → 10K455202+253#15954#15701
10K → 15K294119+175#15701#15526
15K → 20K32767+260#15526#15266
20K → Half3366-33#15266#15299
Half → 25K34035+305#15299#14994
25K → 30K295210+85#14994#14909
30K → 20M104173-69#14909#14978
20M → 21M116115+1#14978#14977
21M → 35K6250+12#14977#14965
35K → 23M14184+57#14965#14908
23M → 24M25289-264#14908#15172
24M → 40K22281-259#15172#15431
40K → 25.2M8137-129#15431#15560
25.2M → Finish41108-67#15560#15627
TOTALS22631936+327
📊

Passing Visuals

Category:
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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